for track in mid.tracks: track_notes = [] absolute_ticks = 0 open_notes = {} # (note, channel) -> (start_tick, velocity)
Lua uses a clean, readable syntax that makes it highly accessible to beginners who are new to programming.
if == " main ": if len(sys.argv) != 3: print("Usage: midi2lua.py input.mid output.lua") sys.exit(1) midi_to_lua(sys.argv[1], sys.argv[2])
: The precise gaps of time between chronological events.
import mido def midi_to_lua(midi_path, lua_path): mid = mido.MidiFile(midi_path) with open(lua_path, 'w') as f: f.write("local midiEvents = {\n") for i, track in enumerate(mid.tracks): f.write(f" track_i = \n") current_time = 0 for msg in track: current_time += msg.time if msg.type == 'note_on' or msg.type == 'note_off': f.write(f" type = 'msg.type', note = msg.note, velocity = msg.velocity, time = current_time ,\n") f.write(" ,\n") f.write("\nreturn midiEvents") # Usage # midi_to_lua('my_song.mid', 'my_song_data.lua') Use code with caution. Best Practices for Midi2Lua Conversions midi2lua
: Allowing players without physical MIDI hardware to perform high-tier musical pieces using scripts. 3. Automation and Modding Beyond gaming, is a staple in the modding world, particularly for players using the ComputerCraft: Tweaked
A minimal but complete midi2lua converter can be written in Python using mido . Below is a reference implementation.
Many developers use Python scripts to convert MIDI to a raw text file or a Lua table, which is then imported into their game engine. Simple Example: Using Midi2Lua Data
-- Note On (0x9) or Note Off (0x8) if eventType == 0x9 or eventType == 0x8 then local data1 = file:read(1):byte() local data2 = file:read(1):byte() local pitch = data1 local velocity = data2 for track in mid
By converting MIDI files to Lua scripts, you can easily access and manipulate musical data in your Lua programs. This can be useful for a variety of applications, such as:
of how a MIDI note is represented in a Lua table, or are you looking for a on a specific tool?
: One of the largest pure Lua libraries for reading and writing MIDI files, featuring a friendly API. It is available through both GitHub and LuaRocks, and is often used for generative composition and DAW scripting.
type = "note_on", channel = 0, note = 60, velocity = 100, time = 0 , Best Practices for Midi2Lua Conversions : Allowing players
-- Generated by midi2lua v1.0 return tempo = 120, -- base BPM resolution = 480, -- pulses per quarter note (from MIDI file) tracks =
-- Iterate through notes to see if any should start playing for _, note in ipairs(song.notes) do if note.time <= currentTime and not note.played then playSound(note.pitch) -- Your engine's sound function note.played = true end end end
MIDI (Musical Instrument Digital Interface) has been the universal language of digital music production for decades. However, as the worlds of music production, game development, and live performance automation converge, musicians and programmers alike need ways to bridge the gap between static musical data and dynamic code. Enter , a powerful tool and methodology designed to convert MIDI file data into Lua scripts.
Here is a helpful guide and a functional code snippet to get you started.
while file:seek() < trackEnd do local delta = readVLQ() currentTick = currentTick + delta
