Midi To Bytebeat
MIDI to Bytebeat
is a niche but fascinating category of tools that bridge traditional MIDI composition with the raw, algorithmic world of "bytebeat"—music generated by short, one-liner C-style code expressions.
Manual Re-creation
: Experienced users often recreate songs by manually finding frequencies for specific notes and using bitwise operators (like >> , & , | ) to sequence them. For example, some users have recreated complex tracks by copying data from trackers like OpenMPT and using find-and-replace to convert note frequencies into a list of integers for a bytebeat synthesizer. midi to bytebeat
Sacha Hoedemaker's Bytebeat Generative Music:
Offers various web tools that sometimes integrate external control inputs. DAW Plugins and Native Tools MIDI to Bytebeat is a niche but fascinating
- Polyphony is Expensive: A single Bytebeat formula evaluating one note is tiny. Four-part harmony requires either four separate Bytebeat formulas mixed together (blowing your formula size) or complex bit-packing (using different bits of
tfor different voices). - No Standard Envelopes: MIDI has note-off. Bytebeat has no concept of release. You must manually implement an envelope follower using
tor use a gate signal derived from the note duration. - Timing Drift: Because Bytebeat relies on integer sample
t, very long MIDI compositions (over 30 minutes) can cause 32-bit integer overflow, requiring 64-bit math.
- Parameterize formulas: derive small integer constants from MIDI meta (seeded via hash of track/patch names) so a single short expression can produce different motifs.
- Encode note sequences into bitfields or packed integers and index them via shifts and modulo of t.
- Use table-like behavior by building pseudo-lookups from arithmetic (e.g., ((x*const) >> shift) & mask).
Bytebeat
Popularised around 2011 by Finnish programmer Ville-Matias Heikkilä (viznut), discarded the need for separate instruments or scores. Instead, it uses a single-line formula—often just a few characters of C or JavaScript code—to generate audio. In Bytebeat, the variable Polyphony is Expensive: A single Bytebeat formula evaluating
Converting MIDI to Bytebeat is not magic. You will face several hard limits:
: MIDI notes are represented by numbers (0–127). To use them in bytebeat, these numbers must be converted into frequencies using the standard formula