u/bhagatriks

i built notebin.fm strictly as a passion project for my love of MIDI tracks and chiptunes.

i am working on an open library similar to freesound.org but for MIDI and algorithmic MIDI sketchpad for chiptune writing. Right now, the engine is locked to NES 8-bit voice limitations to give you a quick 8-bar motif when staring at a blank tracker or DAW grid.

there are no paywalls, no ads.. free sign up allows you to save, edit and manage your MIDI rolls. i am fortunate enough that this is a self funded project hence why i am not asking for $10 for 5 MIDI gens or something dumb like that.

How it works:
* 8-Bit NES Constraints: Every seed outputs a 4-channel .mid file mapped to 8-bit voice layouts (Melody, Chords/Arps, Triangle Bass, and Noise Drums).

* Rules, Not Audio Renders: Uses code-based music theory rulesets for scale harmonization and voice leading, outputting clean, unrendered MIDI notes.

* In-Browser Preview: Audition seeds directly in the browser via Web Audio and Freesound samples before downloading.

* Permanent Addresses: Every seed gets a permanent link so you always get the exact same notes at that URL.

Here is a live example from the engine:
Sunset-757 (Boss Fight in Am at 180 BPM): https://notebin.fm/gen/boss-sunset-757

Looking for feedback:
Before I heavily expand into 16-bit console chips like the SNES (SPC700) or Neo Geo (FM synthesis), I would love to get your thoughts on how the NES voice arrangements feel. Does the channel separation map well to your tracker/DAW setup?

What it doesn't do:
It won't write a full song or export tracker formats directly. It is just an 8-bar starting point so you can drag the .mid into your setup and do the actual composing.

Welcoming any feedback on the generator here:
https://notebin.fm/generate

been making beats in my home studio since the early 2000s and my drive is literally just a graveyard of unfinished tracks and loops. i know in my heart im never gonna finish 90% of these tracks myself, so i built an open community site called notebin.fm

it’s basically if Pastebin and GitHub had a baby that only speaks MIDI.

you can drop a .mid file in, preview the piano roll in your browser, edit or even create them using online midi editor if you don’t own music setup yet. shout to ryohey 🇯🇵 & his open-source signal project with that feature. since i used to live in ableton & fl, I built a drag & drop feature that grab the MIDIs and/or their individual channels from your browser tab right into FL Studio, Ableton, Logic or whatever your DAW poison. I haven’t fully tested it so apologies if it doesn’t work as described.

not looking to make money off this at all. built it after work just to feed a void and get these ideas out into the world. there’s a ‘buy me a coffee link’ on there if you really want.

let me know if the drag-and-drop works on your setup or if anything breaks.

i am going to dust off some folders and browse through the unorganized chaos of “hiphop_98bpm_-dopeness_031_RV3.flp”. be patient as i upload. i promise that i will rename it to something better.