Lo-fi beats are built to sound like a recording of a recording: vinyl crackle, tape warble, a low-pass filter rolling off the highs, drums pushed behind a wall of dust. That aesthetic is the whole appeal, and it is also exactly what makes the genre awkward to convert to MIDI. The pitched material a producer actually wants, the chords, the melody, the bass, is buried under intentional degradation designed to blur it.
Getting a clean MIDI part out anyway is very doable, and it is worth doing: MIDI lets you study a beat's harmony, rebuild it with your own sounds, or re-perform a sampled idea as an interpolation. This guide covers why lo-fi fights back, and the workflow that gets usable MIDI regardless.
Why Convert a Beat to MIDI
Audio is fixed; MIDI is editable. When a beat exists only as audio, you cannot change a chord, swap an instrument, or transpose it without artifacts. Convert it to MIDI and every note becomes something you can move, retune, or replay with a different sound. Producers reach for this to study a reference beat's exact harmony, to rebuild a rough idea cleanly, and to interpolate, re-performing a sampled part with original instruments so the vibe survives without leaning on the source master.
That last use has a legal dimension worth naming plainly: interpolation can help you avoid clearing a sound recording, but the underlying composition may still be protected, so recreating someone's melody as MIDI is not an automatic free pass. Confirm your own position before you release anything. Our overview of AI music tools for producers covers where this fits in a wider workflow.
Why Lo-Fi Fights Audio-to-MIDI
Audio-to-MIDI works by detecting pitch and onsets, and lo-fi degrades exactly those cues on purpose. Vinyl crackle and tape hiss add broadband noise that competes with the notes. Wow and flutter, the pitch wobble of aged tape and off-center records, detunes everything slightly, so a steady note drifts around its true pitch. Low-pass filtering rolls off the upper harmonics that pitch detection uses to lock onto a fundamental. And sidechain pumping, the breathing volume ducking under the kick, distorts where notes appear to start and stop.
None of that is fatal. It just means the raw MIDI from a lo-fi source needs a little more cleanup than a clean recording, mostly quantizing loose timing and fixing an occasional octave or detuned note. If you understand what MIDI does and does not carry, the cleanup makes more sense; what MIDI is lays that out.
Step 1: Skip the Stem Splitter
You might expect the first step to be splitting the drums out from the melodic parts. It is not. Songscription's models are robust enough to work on the full beat directly and pull out the pitched material, the chords, the melody, the bass, without a stem-separation pass first. So you can drop the beat in exactly as it is, crackle, drums, sidechain and all, and get usable MIDI back, no extra tool in the chain.
Separation is there if you want it, but as an option, not a requirement. If you specifically want the drum groove as its own rhythm part, transcribe that separately: our guide to transcribing drums with AI covers that side. Here we are after the notes, and for those you can go straight from the full beat to MIDI.
Step 2: Convert Audio to MIDI
Run the beat through an audio-to-MIDI tool like Songscription, which handles polyphonic material, so a full chord comes across as its component notes rather than a single detected pitch. That matters for lo-fi, where the whole point is usually the lush, jazzy chord voicings; a monophonic converter would flatten a seventh chord into one note and lose exactly what you wanted.
You will get MIDI notes with pitch, timing, and velocity that you can export and drop into any DAW. For the step-by-step on a single file, converting an MP3 to MIDI walks through the direct path, and the full audio to MIDI guide covers the conversion decisions in depth.
Step 3: Clean Up the MIDI
Lo-fi's degradation shows up as three predictable cleanup jobs. Timing: quantize gently to tighten notes loosened by wow, flutter, and sidechain, but not so hard that you erase the laid-back swing that makes lo-fi feel human. Octaves: a muffled low-pass sound occasionally lands the fundamental an octave off, so spot-check the bass. Detuning: if the source drifted in pitch, snap stray notes to the nearest correct pitch. Our guide to cleaning up MIDI after conversion covers all three in detail.
Do this in a piano-roll editor, where pitch and timing are visual and a wrong octave or a note landing off the grid is obvious at a glance. That is the same reason producers who do not read notation are comfortable here; the MIDI editing all happens in a grid they already know.
Step 4: Use It in Your DAW
With clean MIDI in hand, the beat is now raw material. Assign the chords to your own Rhodes or piano, replay the bass with a different sound, transpose the whole thing to sit better under a vocal, or chop and rearrange the progression. This is where converting to MIDI pays off: the part is no longer a fixed audio clip, it is notes you own and can bend to the track. Our guide to importing MIDI into a DAW covers getting it into Ableton, FL Studio, or Logic cleanly.
And if you want notation as well as MIDI, say to hand a part to a session player, the same transcription can produce a score, so you are not choosing between a producer's MIDI and a readable chart. See how producers fold this into sound design in using audio-to-MIDI to recreate sounds, or just start from audio to MIDI.
Frequently Asked Questions
Can you convert a lo-fi beat to MIDI?
Yes, and you do not need to separate the stems first. Songscription is robust enough to work on the full beat and pull the chords, melody, and bass out directly, no stem splitter required. Lo-fi adds some friction because of vinyl crackle, tape warble, and heavy filtering, so expect to quantize timing and fix the occasional octave, but the chords and melody come across well.
Why is lo-fi music harder to convert to MIDI?
Lo-fi is intentionally degraded. Vinyl crackle and tape hiss add noise, wow and flutter detune the pitch slightly, low-pass filtering muffles the high harmonics that pitch detection relies on, and sidechain pumping distorts note onsets and durations. None of that stops conversion, but it means the raw MIDI needs a bit more cleanup than a clean studio recording would.
How do producers use audio-to-MIDI for sampled beats?
Two main reasons. To study and rebuild: convert a sample or reference beat to MIDI to see the exact chords and melody, then replay them with your own sounds. And to interpolate: recreating a sampled part as MIDI and re-performing it with original instruments is a common way to capture the feel of a sample without using the original master recording, which can help sidestep clearance. Always confirm your own legal position, since the underlying composition may still be protected.
Do I need to separate the drums before converting a beat to MIDI?
No. Songscription works on the full beat and extracts the pitched material (the melodic sample, chords, bass) directly, so there is no required stem-separation step. Separating is optional if you specifically want only the melodic parts, and if you want the drum pattern on its own, you can transcribe that separately as a rhythm part.
Final Thoughts
Lo-fi is a useful stress test for audio-to-MIDI precisely because it breaks the assumptions pitch detection is built on. If you can get clean MIDI out of a dusty, filtered, wobbling beat, you can get it out of almost anything. The trick is not a magic setting: feed it the full beat, let the model pull the pitched parts out on its own, then quantize and spot-fix, with no stem-splitting stage to set up in between.
The deeper point for producers is that the conversion step has basically stopped being the bottleneck. Turning a beat into editable notes used to mean replaying it by ear; now it is a single conversion away. What is left is the creative part, deciding what to do with a progression once it is MIDI, which is where you actually wanted to spend your time in the first place.
