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    2,053,304 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 25 Oct 2026.636,163 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 25 Oct 2026.269,472 projects gradedProjects with a letter from A to F. Counted on 25 Oct 2026.
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    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Effective Instruments

    Mod

    Play instruments to give nearby allies buffs or enemies debuffs.

    A90/ 100
    • OverviewA
    • SecurityPartly checked
    • PrivacyNone found (1/2)
    • AINone found
    • CompatibilityUp to 26.1.2
    • ModpacksIn 45
    • ReleasesLatest 7 Jul

    Download

    effectiveinstruments-1.6.0.jar

    Released 7 Jul 2026 · 17.3 MB

    Not checked: its author does not let other sites download this file from CurseForge, so we cannot check it.

    Open on CurseForge
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade A

    How grades work

    Strengths

    • Stable releases
    • Public source code and issue tracker

    Points lost

    • First release only 8 months ago−3 points
    • Releases in only 5 of the last 24 months−2 points
    • No release in 4 months−1 point
    • Under 5 million downloads−1 point
    All 11 criteria

    • Maintenance

      3 points lost24 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.4 months ago (7 Jul 2026) 11 / 12
      Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.26.1.2 on NeoForge, 1.20.1 on Forge. 15% or more of the popular mods updated in the last 6 months also have files for 26.1.2. Latest Minecraft: 26.3. 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 5 of the last 24 months 4 / 6

    • Stability

      Full points22 / 22
      Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.1 of the 32 modpacks with two or more versions removed it in a later one (3%) 10 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.1 of its 8 releases in 2 years needed a quick fix (13%) 7 / 7
      Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.None 5 / 5

    • Transparency

      Full points10 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · otectus/EffectiveInstruments 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · otectus/EffectiveInstruments 3 / 3

    • Popularity

      1 point lost3 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.91,601 3 / 4

    • Track record

      3 points lost5 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.8 months, 7 releases 5 / 8

    • Security

      Partly checked
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in the parts we could check. 1 latest file for recent Minecraft versions cannot be checked (26.1.2 NeoForge): its author does not let other sites download it from CurseForge. See Security
    Total90 / 100

    64.1 of the 71 points that apply = 90 out of 100. The points above are rounded to whole numbers.

    Images

    • Sample 1
    • Sample 2
    • Sample 3
    • Sample 4

    About

    Effective Instruments adds magical buff and debuff auras to musical instruments, so playing can empower nearby allies or inflict harmful effects on nearby mobs. It supports stationary instruments from Genshin Instruments and Even More Instruments, as well as mobile instruments from Immersive Melodies; with Immersive Melodies, musicians can move around while a passive aura pulses during a melody or free play. Each of its 42 supported instruments has a distinct positive and offensive aura, including the Windsong Lyre’s Speed or slowing gale, the Glorious Drum’s Strength and Resistance, and the Koto’s Water Breathing and Dolphin’s Grace. For stationary instruments, the instrument’s positive aura is selected by default and starts affecting valid targets when the musician plays a note; switching to its offensive variant applies debuffs, and the aura clears after playing stops or the instrument is closed. Colored music-note particles show an aura’s range and configured color, while particles on affected mobs distinguish landed debuffs. When both aura tiers could affect the same player, the stationary tier takes precedence by default; mobile auras are lighter, with shorter range and duration. Instruments wear down with use and can be repaired on an anvil, with offensive auras consuming durability faster. Players can customize, disable, or add aura presets, change instrument-to-aura mappings, and tune effects, duration, radius, color, and display details; presets and mappings can also be supplied or overridden through datapacks. Optional NPC integrations let supported characters use the aura system, including Recruits soldiers, Guard Villagers, Touhou Little Maids, and MCA Reborn villagers.

    Written from Modrinth , CurseForge and the GitHub README . How we write it

    In-game changes

    Does not change the game's code directly.

    Keeps all of vanilla Minecraft's textures, models and sounds.

    Often used with it

    See all 30
    AmendmentsAL_Ender's CataclysmBRelicsAIron's Spells 'n SpellbooksAAlex's CavesC

    Details

    Creator
    otectus
    License
    MIT License
    Downloads
    92K
    Created
    19 Feb 2026
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Discord

    Security

    No harmful code found in the parts we could check

    We checked its files and read their code, without running it.

    One of its files for recent versions cannot be checked: its author does not let other sites download it from CurseForge.

    What it can do on your computer

    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them. 2 files in your config folder.

    Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.

    How we checked · 1 of 2 latest files checked, last on 16 Oct 2026
    • FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.
      2 latest files: the newest file for each Minecraft version and loader. Both are for recent versions. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. 1 of them is not checked yet. See each file in Releases
    • Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.
      Read without running it
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.
      Nothing declared about your system outside the game.
    • Looked for, not foundWe looked for these in the file and did not find them.
      The internet, folders outside the game, other programs, updating itself, the webcam or microphone, an AI service.

    Privacy

    We found nothing it sends, in the 1 of its 2 files we read

    We read its code without running it: it contacts no web address while you play.

    Why we show this: a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.

    How we checked · 1 of 2 files read
    • Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.
      The code of 1 of 2 files, for recent Minecraft versions. See each file in Releases
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares crash reports, usage data and advertisements. Since 13 Aug 2026, Modrinth's rules require it when a project collects data on its users or shows advertisements.
      Nothing declared about crash reports, usage data or advertisements.

    AI

    No sign so far that AI was used to make it

    We looked for AI tools in its texts, files and images and found none.

    We have not read its code history yet.

    No sign of AI in the game

    We found no AI service, AI library or AI model file in its code.

    Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.

    How we checked · 5 places read
    • Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.
      No AI content or AI features declared.
    • Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.
      Not read yet
    • Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.
      Nothing found
      16 changelogs read
    • Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.
      Nothing found
    • Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.
      Nothing found
      184 images read
    • Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.
      No AI service, AI library or AI model file
      66 code files read

    Compatibility

    See all 7 files
    NeoForge
    Forge
    1.201.2126.126.3

    Point at or tap a version to see its loaders.

    Runs onWhere to install it: in your game, on the server, or both. As the author says on Modrinth.Needed in your game and on the server, or you cannot join.
    RequiresProjects you must also install for it to work. From the author's lists for its files for recent Minecraft versions, or from its project page.Nothing
    OptionalProjects it can work with but does not need. The author lists them.
    Even More Instruments!on Forge-Genshin Instrumentson Forge-Immersive Melodieson ForgeA
    IncludesProjects packed inside its files.Nothing
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.It has no file for Minecraft versions newer than 26.1.2. Many recently updated mods still support 26.1.2.

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    20100
    Oct 2024: 0 modpacksNov 2024: 0 modpacksDec 2024: 0 modpacksJan 2025: 0 modpacksFeb 2025: 0 modpacksMar 2025: 0 modpacksApr 2025: 0 modpacksMay 2025: 0 modpacksJun 2025: 0 modpacksJul 2025: 0 modpacksAug 2025: 0 modpacksSep 2025: 0 modpacksOct 2025: 0 modpacksNov 2025: 0 modpacksDec 2025: 0 modpacksJan 2026: 0 modpacksFeb 2026: 0 modpacksMar 2026: 5 modpacksApr 2026: 19 modpacksMay 2026: 12 modpacksJun 2026: 12 modpacksJul 2026: 10 modpacksAug 2026: 11 modpacksSep 2026: 5 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 20240
    Nov 20240
    Dec 20240
    Jan 20250
    Feb 20250
    Mar 20250
    Apr 20250
    May 20250
    Jun 20250
    Jul 20250
    Aug 20250
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    Dec 20250
    Jan 20260
    Feb 20260
    Mar 20265
    Apr 202619
    May 202612
    Jun 202612
    Jul 202610
    Aug 202611
    Sep 20265

    More modpacks put it in their new versions than a year ago: 12 a month now, 0 a year agoThe average of the last 6 months, compared with the same 6 months a year before. We say it only when the change is large..

    45 modpacks include Effective Instruments in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    MineColonies - Create & Conquer159K downloadslast version with it 4 Oct 2026One Piece Grand Blue - (Mine Piece)17K downloadslast version with it 22 Aug 2026Cap's Create RPG5.4K downloadslast version with it 21 Sep 2026Beta of Peace 3.2K downloadslast version with it 30 Mar 2026Integrated RPG2.7K downloadslast version with it 22 Oct 2026Voloron 31.9K downloadslast version with it 9 Apr 2026Honey, I got bored!1.6K downloadslast version with it 15 Apr 2026Waifing1K downloadslast version with it 28 Jun 2026Colonos Do Amanha (CA)1K downloadslast version with it 16 Jun 2026Blood and Beauty991 downloadslast version with it 6 Oct 2026
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Effective Instruments. Share: how many of the modpacks with Effective Instruments also have that mod.

    ProjectTypeShareGrade
    AmendmentsAModin 64% of the modpacks with Effective InstrumentsL_Ender's CataclysmBModin 62% of the modpacks with Effective InstrumentsRelicsAModin 60% of the modpacks with Effective InstrumentsIron's Spells 'n SpellbooksAModin 58% of the modpacks with Effective InstrumentsAlex's CavesCModin 56% of the modpacks with Effective InstrumentsSophisticated StorageAModin 56% of the modpacks with Effective InstrumentsHandcraftedCModin 53% of the modpacks with Effective InstrumentsMowzie's MobsBModin 53% of the modpacks with Effective InstrumentsBlueprintAModin 53% of the modpacks with Effective InstrumentsYUNG's Better Ocean MonumentsAModin 51% of the modpacks with Effective Instruments
    1 to 10 of 30123

    Latest files

    The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.

    MinecraftLoaderVersionSecuritySendsRequires
    26.1.2·NeoForge1.6.01.6.0 · effectiveinstruments-1.6.0.jarSends: Not read yetRequires:NothingNot checkedWe have not checked this file yet.
    1.20.1·Forge1.6.01.6.0 · effectiveinstruments-1.6.0.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.

    7 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    26.1.2The latest file for its Minecraft version and loader·NeoForge1.6.01.6.0 · effectiveinstruments-1.6.0.jar·7 Jul 2026Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Not on ModrinthOpen this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.20.1The latest file for its Minecraft version and loader·Forge1.6.01.6.0 · effectiveinstruments-1.6.0.jar (main file)·6 Jul 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 330.1 KB
    1.20.1·Forge1.5.01.5.0 · effectiveinstruments-1.5.0.jar (main file)·12 May 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Stable · 257.1 KB
    1.20.1·Forge1.4.81.4.8 · effectiveinstruments-1.4.8.jar·18 Apr 2026Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Not on ModrinthOpen this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.20.1·Forge1.3.01.3.0 · effectiveinstruments-1.3.0.jar·16 Apr 2026Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Not on ModrinthOpen this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.20.1·Forge1.2.01.2.0 · effectiveinstruments-1.2.0.jar·23 Mar 2026Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Not on ModrinthOpen this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.
    1.20.1·Forge1.0.01.0.0 · effectiveinstruments-1.0.0.jar·19 Feb 2026Not checkedIts author does not let other sites download this file from CurseForge, so we cannot check it.Not on ModrinthOpen this file on CurseForgeDownload not available hereIts author does not let other sites download this file. Get it on CurseForge: its logo in "Get it on" opens the file's page.

    Quick fixes

    In the last 2 years, 1 release needed a quick fix: a new release within 3 days to fix a problem. This counts in the grade, but it is too few to lose points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.1

    • Effective Instruments 1.4.8 (Forge 1.20.1)18 Apr 2026[1.4.8] - 2026-04-18 Fixed Duplicate offensive auras across…