Spin is $39, a one-time purchase.

Drop an audio file on Spin and it reads the harmony — key and chords — then generates a transport-synced chord progression as MIDI you can drag onto any instrument.

Does it work in Logic, Ableton and FL Studio?

Yes. It's an Audio Unit (AU) and VST3 plugin, so it runs in Logic Pro, Ableton Live, FL Studio, GarageBand and any Mac DAW that hosts AU or VST3.

Is it Mac only? Apple Silicon or Intel?

It's macOS only right now, and it's a universal build that runs natively on both Apple Silicon and Intel Macs (macOS 11 or newer).

MIDI · AU + VST3 · Chord Progressions

Spin

Name: Spin
Brand: Dannny McCcarthy Sounds
Price: 39.00 USD
Availability: InStock

$39

Drop a track, get a MIDI chord progression. Spin reads the harmony of an audio file you drop on it (key, chords, feel) and generates a transport-synced chord progression as MIDI you can drag onto any instrument.

Buy for $39 How to install

Mac · Apple Silicon + Intel AU + VST3 Instant download

Spin plugin cover: a Mac MIDI chord-progression generator plugin by Dannny McCcarthy Sounds

See the interface.

The actual plugin, running. No mockups.

SPIN

harmonic DNA → new progressions

DROP AN AUDIO FILE HEREwav · aiff · mp3 · m4a · flac · ogg

91V_PW_120_piano_resampled_fatigued_lofi_Em.wav · 16.0s · match 0.76

KEY

A minor

CLARITY

0.75

CHORDS

Am Gm Asus4 C Am Em7 Dmaj7

i vii Isus4 III i v7 IVmaj7

WANDER66

Am F C F Am G Cmaj7 Am

i VI III VI i VII IIImaj7 i · 120 BPM · 4 beats/chord

Spin 1 ready. Drag it out, or roll the transport.

Hear it.

A dropped audio clip, then the chord progression Spin pulls out of it. Tap to listen.

SpinAudio to MIDI chords

Rendered offline through the real Spin harmony reader. It detected Am–F–C–G; the after is that MIDI on a piano.

What it does.

Everything you need, nothing you don't.

Reads the harmony

Analyzes a dropped file's key and chords offline.

Harmony out

Get playable harmony you can reassign to any instrument.

Any audio file

Drop a vocal, loop or sample: it reads the harmony.

Editable notes

Real MIDI you can quantize, transpose and rework.

Creative re-voicing

Play the detected chord progression on your own sounds.

Mac-native

Universal AU + VST3, Apple Silicon and Intel.

Drop a track, get chords.

Drop an audio file and Spin analyzes its harmony offline, then generates a chord progression synced to your project tempo. Drag it onto a synth, re-voice a sample's chords or start a beat from a loop's key.