bemusic/bemuse

---
id: bms-support
title: BMS Support in Bemuse
sidebar_label: BMS Support
---

Bemuse supports BMS, BME and BML, but some features are not supported.
They are noted here.

**BMS**

- BGA is not supported yet.
- Free-zone not supported.
- Invisible objects [not yet](https://github.com/bemusic/bemuse/issues/186) supported.

**BML**

- Supports `#LNTYPE 1` (RDM; loose BML) and `#LNOBJ` (RDM type 2; strict
  BML)
- Long notes are judged both at the start and at the end (2 judgments
  per long note, similar to O2Jam).
- Player must release the button at the end of long notes. Otherwise,
  the end of long note will be missed.

  - **Exception:** Player doesn’t have to stop spinning the turntable
    at the end of SCRATCH notes. If the player keeps spinning, player
    will get METICULOUS (Perfect) judgment.

**PLAYER**

As Bemuse is currently a single-player game, only #PLAYER 1 is
supported.

**RANK**

- Bemuse does not support #RANK.
- Judgment timegate is described at [scoring and judgment](scoring-and-judgment.md) section.
- Bemuse judge notes per unit time.

**TOTAL**

Bemuse does not support #TOTAL.

**DIFFICULTY**

- BMS charts with #DIFFICULTY 1-4 are treated as the same (non-insane).
- BMS charts with #DIFFICULTY 5 are treated as 発狂 BMS (INSANE chart).
  In music selection screen, it is displayed in different color.

**TITLE and SUBTITLE**

- Supports implicit subtitles.
- Supports multiple subtitles.

**ARTIST and SUBARTIST**

- Supports multiple subartists.

**Landmine**

Not supported (in the future, it will display as fake note).

**WAV**

- Supports OGG, M4A, MP3, WAV samples.
- Polyphony of #WAV is 1, consistent with major BMS implementations.
- However, it does not apply to sounds played when player hits the
  button without note (freestyle sound).

  - Sound of the nearby note will play with no polyphony limit.

- If player gets OFFBEAT (bad) judgment, the sound will play in wrong
  pitch.

**RANDOM**

- Only #RANDOM, #IF, #ENDIF in original specification are supported.
  However, they can be nested (nesting level can be ended with
  `#ENDRANDOM`).