Bass to MIDI, note by note.
Get the bassline of any song as MIDI: the right octave, real note lengths and the song’s tempo, ready for your own bass sound.
DrumsBassPianoGuitarOtherVocals
Free bass to MIDI converter · From a song or a bass track
1What’s in your track?
2Add your track
DrumsBassPianoGuitarOtherVocals
Free · Bass to MIDI
Bass to MIDI, note by note.
Any bassline as MIDI, in the right octave. Free.
1What’s in your track?
2Add your track
How it works
How to convert bass to MIDI, in three steps.
1
Song or solo bass
To pull the bass out of a mix, choose Full mix. A bass recorded alone: One instrument, then Bass.
2
Add your track
A DI bass, a miked amp or a synth bass. The less reverb on it, the cleaner each note starts.
3
Download bass.mid
Drop it on a synth or bass instrument and pick your own sound.
What you get
What you download.
- bass.mid
- The bassline with real note lengths, down to the lowest notes.
- bass.mp3
- The bass stem as audio, to check against or keep.
- score.musicxml
- The bassline in the bass clef, written an octave up as bass parts are.
Why Midium
Why use Midium.
The right octave
A low note’s overtones, an octave and an octave and a fifth up, are often louder than the note itself. Each note is checked against them to pick the right one.
One note at a time
A bass plays one note at a time, so each note stops where the next begins: no overlaps to clean up. Double stops struck together stay together.
Without the kick
Kick drum thumps that leak into the bass are taken out, so they don’t turn into stray notes.
FAQ
Bass to MIDI questions.
Why do converters get bass notes an octave wrong?
Because a low string’s first overtone can be louder than its fundamental. Midium compares each note with its overtones before it settles on the octave.
Will the bass lock to my drums?
Yes. Each note starts on the song’s 16th-note grid from bar 1, the same grid the drums are written on.
Does it work with synth bass and bass guitar?
Yes. Both work; clear, steady basslines give the cleanest MIDI.
Can I get bass tabs?
Not yet. You get MIDI and notation (MusicXML), which most tab apps can import.
More converters
More free converters.
Convert your song to MIDI.It’s free.
Upload an MP3 or WAV. MIDI, sheet music and stems, from one track.