Free for Mac & Windows

Get every chord inthat jazz standardin seconds.

Drop a track. Get a complete chord chart in seconds. Play along and Apollo names every chord you hit in real time. Wrong note? You'll know before it rings out.

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Detected Chords (109)
Pop (Complex)0:00 / 3:05
Dm7|
Dbm7|
Gb7|
Bm
Bm7|
Em7|
Am7|
D7
Gmaj7|
Bm7|
Em7|
Am7
D7|
D/Gb|
Bm|
Em7
1x
🔊
01
Transcribe Any Song
Drop in a track and Apollo returns every chord, bar by bar, in seconds. Not a rough guess. A complete chord chart you can trust.
02
Play Along in Real Time
Chords scroll with the music. Plug in your MIDI keyboard and Apollo names every chord as you play it. Right note, wrong note, you know instantly.
03
Go Deeper
Ten notation styles. Alternative voicings. Nashville chord numbers. Scale detection. Every song becomes a lesson you chose to take.
Song Transcription

152 chords. 5 minutes. Zero effort.

You already know the song. You can hum every note. But sitting down and figuring out chords by ear takes hours. Or you trust tabs that are wrong half the time. Apollo fixes that. Upload any audio file and get a complete chord-by-chord breakdown in seconds. Every chord. Every bar. Every beat.

  • Drag and drop any audio file: MP3, WAV, FLAC, AAC
  • Auto-detects BPM, key, and song duration
  • Full chord breakdown mapped bar by bar
  • Build a library of every song you transcribe
+
Drag & drop or click to select
Upload an audio file to detect chords
MP3 · WAV · FLAC · AAC
Sunday Service Choir - Rain
152 chords · 67 BPM · 4:48
Am7   |   D7
Em7
Bm7   |   Em7
1:083:05
Real-Time Playback

See the chord. Hear the song. Play along.

No more pausing and rewinding. Press play and the chords scroll in perfect sync with the music. Plug in your MIDI keyboard and Apollo tells you exactly what you're playing. Loop the song. Slow it down to half speed. Speed it up when you've got it.

  • Chords scroll in perfect sync with the music
  • Real-time MIDI detection names your chord as you play it
  • Adjustable playback speed, from 0.5x to 2x
  • Loop the song until you nail it
Ten Notation Styles

See chords the way you think about them.

Standard. Jazz. Pop. Nashville numbers. Apollo speaks your language. Switch between ten chord notation styles with one click. Whether you read Cmin or C-7, the chart adapts to you.

Standard
Cmin
Abmaj
Fmin
Jazz (Complex)
C⁻7(9,11)
AbΔ7
F⁻7
Jazz (Simple)
C⁻7
AbΔ7
F⁻7
Pop (Complex)
Cm7(9,11)
Abmaj7
Fm7
Beyond Detection

Every song teaches you something new.

Apollo does more than name chords. It suggests voicings you've never tried. Shows alternate names for every detection. Set the key and chord numbers appear instantly.

  • Alternate chord names for every detection
  • Chord numbers for quick transposing
  • Set the key and see chord relationships instantly
  • Built-in virtual piano so you can hear every chord
Display Options
Alt Chords
Chord Suggestions
Chord Numbers
Sound
Sustained Notes
Scale Detection
Apollo Pro

Unlimited uploads. Unlimited detections. Chord suggestions while you play. One payment. Yours forever.

Musicians don't try Apollo.
They keep it open.

Ten seconds from hearing a song to playing along. Every single time.
Stopped trusting chord charts online. Apollo nails it every time.
I open Apollo before I open my DAW. Instant chord breakdowns on any track.
Stopped trusting chord charts online. Apollo nails it every time.
I open Apollo before I open my DAW. Instant chord breakdowns on any track.
Stopped trusting chord charts online. Apollo nails it every time.
I open Apollo before I open my DAW. Instant chord breakdowns on any track.
Stopped trusting chord charts online. Apollo nails it every time.
I open Apollo before I open my DAW. Instant chord breakdowns on any track.
Showed it to every musician I know. They all texted back the same thing: where has this been.
My students bring in songs they actually want to learn now. Completely changed how I teach.
Showed it to every musician I know. They all texted back the same thing: where has this been.
My students bring in songs they actually want to learn now. Completely changed how I teach.
Showed it to every musician I know. They all texted back the same thing: where has this been.
My students bring in songs they actually want to learn now. Completely changed how I teach.
Showed it to every musician I know. They all texted back the same thing: where has this been.
My students bring in songs they actually want to learn now. Completely changed how I teach.
Three years in. Still use it every single week.

You already hear the song.
Now play it.

Every chord, mapped out in seconds.
Free for Mac and Windows.

Your download link is on the way. No spam, ever.