Beatmania IIDX BMS (Be-Music Source) packs are collections of music files and charts used in community-developed simulators to replicate the 7-key + turntable gameplay of Konami’s beatmania IIDX
. While originally created for 5-key simulation, the format evolved into (Be-Music Extended) to support the 7-key layout. Core BMS Ecosystem
: The primary goal of the BMS community is to provide a platform for songs, charts, and keysounded music. Major Clients
: A modern, cross-platform Java-based player that is actively maintained and supports high-resolution skins. Lunatic Rave 2 (LR2) Beatmania Iidx Bms Packs
: The legacy standard. Although outdated and prone to memory leaks, it remains popular due to its extensive history and community ranking features. : A browser-based player for quick, installation-free play. Recommended Starter & Event Packs
For a structured experience, players typically download "Starter Packs" or annual "Event Packs" which contain curated selections of high-quality original content. Recommended Packages Description Starter Packs BMS Starter Pack 2022 GENOSIDE 2018
Designed for new players with a wide range of difficulties and high-quality production. Annual Events BMS of Fighters (BOF) Beatmania IIDX BMS (Be-Music Source) packs are collections
Competitive events where artists submit original songs. BOF is the largest and most famous annual contest. Aesthetic Packs Pure White Toy Musical Gateway Focused on specific themes or musical genres. Navigating Difficulty Tables
Standard in-game level ratings in BMS can be inconsistent. Players rely on Difficulty Tables
—external metadata files that group songs by community-vetted difficulty. Normal Tables : For general play (levels roughly 1–12). Insane/Stella/Satellite Quick Install & Play (general steps)
: For advanced players. These tables often use a separate scale (e.g., ★1 to ★25) to differentiate patterns far more difficult than official arcade charts. Regarding Official IIDX Song Conversions Legal/Community Stance : Official beatmania IIDX
song packs (conversions of Konami arcade data) are often considered "illegal BMS" Availability : Many reputable BMS hosting sites, such as , have removed these files due to copyright concerns.
: These conversions often lack "keysounds" (where every note hit corresponds to a specific sound layer), a defining feature of the official game and high-quality original BMS.
| Year | Event | |------|-------| | 1998 | BM98 (first popular Beatmania simulator) released by Yaneura. BMS format introduced. | | 2001 | Rise of Japanese BBS communities sharing BMS files. | | 2003 | First large pack competition: BMS of Fighters (BOF) launched. | | 2006 | Lunatic Rave 2 (LR2) becomes standard simulator. | | 2010s | International scene grows; Western packs appear (e.g., PPP, Mute, Synth packs). | | 2018+ | beatoraja replaces LR2 for high-level play; BMS packs included in Infinity Zone (ranked score-tracking platform). |
| Type | Description | Examples | |------|-------------|----------| | Event Packs | Contest submissions (e.g., BOF, G2R) | BOFu2017, G2R2018, BMS of Fighters | | Artist/Tribute Packs | Dedicated to a single composer | Frums Pack, LeaF Pack, Camellia BMS Collection | | Difficulty-specific packs | For beginners or insane-level players | ★1–★5 Pack, Overjoy Unlocker | | Themed packs | Genre or aesthetic focus | Trance BMS Pack, Hardcore TANOC Tribute*, Winter BMS |