Midi2lua

The MIDI2LUA project (often associated with tools like the MIDI2LUA converter) is a utility designed to bridge the gap between music production and in-game scripting, particularly for platforms like Roblox. Key Features of MIDI2LUA

MIDI to Script Conversion: Converts .mid files directly into Lua code that can be used for "auto piano" scripts in games.

Roblox Compatibility: Specifically targets Roblox music experiences, allowing players to perform complex pieces automatically.

Note Precision: Translates MIDI note data into a sequence of keystrokes or functions that mimic physical keyboard inputs. How to Use MIDI2LUA (Process)

Prepare Your MIDI: Obtain a standard MIDI file of the song you want to perform.

Convert the File: Use a web-based tool like the MIDI2LUA site to upload your file. midi2lua

Generate & Copy: The tool generates a Lua script string or a sequence of piano notes.

Implementation: Paste the resulting script into your executor or the game's sheet music space to begin playback. Related Advanced Tools

For users looking for more robust features, other MIDI-to-Lua utilities offer expanded capabilities:

MIDI++: An advanced "autoplayer" and piano bot for Roblox with features like timing accuracy and realistic performance simulation.

MIRP (MIDI Input to Roblox Piano): Designed for real-time play, allowing you to connect a physical MIDI keyboard to your computer to play in-game instruments. The MIDI2LUA project (often associated with tools like

LuaMidi Library: A pure Lua library for developers who want to write their own MIDI parsing and writing functions from scratch.

Are you looking to automate playback in a specific game, or are you trying to develop a custom script for a new project?

The Magic: Real-Time Interaction

Here’s where it gets fun. Because your music is just data, you can manipulate it on the fly.

Example 1: The "Health" Synth

-- Play a synth lead, but filter the notes based on player HP
function updateMusic(playerHealth)
  for _, note in ipairs(song.tracks[2].notes) do
    if playerHealth > 50 or note.pitch < 60 then
      playNote(note)
    end
  end
end

Example 2: Rhythm-Based Powerups

-- Check if the player presses "A" within 50ms of a Kick drum
function onPlayerAction(inputTime)
  for _, note in ipairs(song.tracks[1].notes) do
    if note.pitch == 36 and math.abs(inputTime - note.time) < 0.05 then
      grantBonus("Rhythm Strike!")
    end
  end
end

Step 3: Integrate into Your Lua Project

Once you have the Lua file, you require or load it into your project.

Example in LÖVE2D (Love2D):

local song_data = require("my_song")
function love.load()
current_event = 1
start_time = love.timer.getTime()
end
function love.update(dt)
local current_time = love.timer.getTime() - start_time
-- Iterate through events within a tolerance
while song_data.tracks[1].events[current_event] and
song_data.tracks[1].events[current_event].time <= current_time do
local ev = song_data.tracks[1].events[current_event]
if ev.type == "note_on" then
play_sound(ev.note, ev.velocity)
end
current_event = current_event + 1
end
end

2. Core Concepts

8.2 Support for MIDI RPN/NRPN

Add controller mapping in converter:

if msg.type == 'control_change' and msg.control == 7:
    track_cc.append(f" time = abs_ticks, cc = 7, value = msg.value ")