Reverse Engineering Rock 'n' Roll

Capo uses a blend of advanced signal processing and machine learning to help you learn songs by ear. Its powerful, simple-to-use tools allow you to dig deep into the details of a recording so you can learn to play songs more accurately, and in less time.

Hear notes more clearly

Slow it down, solo instruments, and listen to quickly-played notes frozen in time.

Start playing songs faster

Automatically detected chords and beats give you a massive head start on learning new tracks.

Pick up where you left off

Capo's Projects store the changes you make to chords, looping regions, and even the playhead location for when you return.

Tab It Out, Hear Each Note

Use your mouse to draw notes inside the spectrogram. As you click and highlight each note, hear it played back as tablature is generated automatically for you—no need to keep a notepad at hand to transcribe solos.

Teacher's Friend


I have used Capo for more than ten years, and as a musician and a teacher it is perfect for learning and understanding what you hear on records. I can slow it down, repeat sections, any number of times, and many other things. It is a very useful app. I love it!

Melbfrank - Canada

Capo for macOS

Very helpful for learning songs and instruments


I've been using Capo for years on Macs and iPads, and I truly love it! It's a great help for me to figure out how to play a song by giving me a starting point for working out the chords. It's one of the few apps that I pay for the subscription, because I find the added features invaluable. I use it for guitar and ukulele transcriptions of songs. This is a keeper!

tvf - United States

Capo for macOS

Great for Ukulele practice


This is fantastic! By simply switching the TAB display to ukulele I can learn a new song easily. I download the somgs I want to learn right out of my iTunes library and play along with the original artist. No need to buy a book of songs. I mean, books are ok but this way I can learn right along and take in all aspects of the tune; how it should sound, the right chords, finger picking, etc. I can slow down and rehearse a section that gives me trouble until I get it right. It is a no-brainer! Use this app!!

jwrobles - United States

Capo for macOS



A great tool for helping to learn songs and parts. Well executed with a great interface across the desktop and mobile. All the tools you need to be able to dig into the minutiae of a song are there. As a musician I couldn't live without it.

aydj - Australia

Capo for macOS

Apple Design Award

Mac Developer Showcase

Winner 2011

Best of Mac App Store

Best Apps of the Year


iMore Best of 2014 Award

Audio App of the Year


“Whether I go to learn a song myself or teach someone how to play a song, I bring it up in Capo.”

Read about Capo's use in Education ›

Capo is a fantastic way to analyze & learn music quickly; I love how clean the pitch algorithm is even at 1/4 speed. Capo is a great teaching & learning tool whether you're a rank beginner or a seasoned professional.

I have been wishing for this software for years. It's incredibly useful, whether I'm charting my own songs for the players who join me, or discovering exactly what is being played on a recording I love.

I am a devout Capo user for a couple of years now—it's the GREATEST of all, especially since it makes a library of your tunes you work on and is sonically great. It's my go-to music learning app!

Capo is an invaluable learning tool. I use it to loop hard phrases, and slow them down with very few artifacts, making them easy to master!

Vernon Reid

Guitarist for Living Colour

Kristian Bush

Guitarist/Singer for Sugarland

Will Lee

Bassist for David Letterman

Pete Thorn

Guitarist for Chris Cornell

Read what more pros are saying ›

Capo Specifications


  • Slow down audio without affecting pitch
  • Transpose to different keys
  • Isolate instruments and vocals
  • Eliminate instruments and vocals
  • Scrub with audio frozen in time

Song Analysis

  • Detects chords, and the key of your song files
  • Uses beat detection to calculate tempo and provide snapping
  • Powerful Spectrogram display for simple tabbing


  • Draw on the Spectrogram to generate tablature
  • Displays tablature for Guitar, Banjo, Mandolin, Ukulele, and 4-6 string Bass


  • Detected chords can be edited one at a time, or globally
  • Can display Chord Names, Chord Boxes, Simple Piano diagrams, or nothing if you prefer!
  • Chord boxes for Guitar, Banjo, Mandolin, Ukulele, and 4-6 string Bass
  • Left-handed chord box display also available


  • Song-synchronized click track
  • Includes 5 different metronome sounds
  • Metronome can count in your looping regions


  • Regions can be looped for practice
  • Markers mark the notable points in a song
  • Rename regions and change their colors to keep organized

User Interface

  • Designed specifically for the Mac
  • Switch between Practice and Tabbing modes
  • Supports MacBook Pro with Touch Bar
  • Toggle visibility of Chords and Notes
  • Full Screen support
  • Autosave

Custom Control

  • Capo can be configured to use custom keystrokes for playback control
  • Use MIDI foot switches and controllers to control Capo's playback


  • Audio, user entries, and effects are saved into Projects
  • Sync projects using iCloud for use with Capo touch and your other Macs
  • Share projects using AirDrop, Messages, and more
  • Continue your work on your iPad or iPhone running Capo touch using Handoff.

Supported File Formats

  • Purchased, DRM-free audio from iTunes
  • WAV, AIFF, MP3, MP4, M4A, FLAC
  • Cannot load protected M4P files


  • M4A/AIFF files with playback adjustments
  • Audio-synchronized MIDI files with chord and note entries


  • A Mac running macOS High Sierra (10.13) or newer
Download on the Mac App Store

Capo requires macOS 10.12 or later

Capo uses ZTX PRO Time Stretch/Pitch Shift Technology licensed from Zynaptiq GmbH.