Circle o Fifths: Guitar+Piano

Turn music theory into something you can actually play — on guitar or piano. Circle o Fifths is the fastest way to find the chords in any key, learn the scales to solo over them, and write your own songs. A handy practice tool that's a game changer for learning songs, writing your own, and finally understanding how chords fit together. NEW in 3.0: Songs and jamming. Write whole songs with verses, choruses and bridges, add drums (Rock, Funk, Disco, Half Time or Ballad), then play scales over your own chords, or tap Solo and let the app improvise something new every time. Share any song with a friend as an audio file. NEW in 2.2: A Scales tab — see any scale on the guitar fretboard or piano keyboard, color-coded by degree, with the five CAGED shapes, full-neck patterns, and a Licks Library of ready-made riffs (blues, rock, metal, country, bluegrass, jazz, and worship). Switch between guitar and piano on the fly — chord diagrams, sounds, and strumming all swap to match. Head to the Scales tab to see any scale light up on the fretboard or keyboard, work through CAGED shapes and full-neck patterns, and learn ready-made licks note for note. Jump to the Progressions tab to write your own songs, pick a tempo, add drums, and hear them played back with realistic strumming patterns. Then tap Jam and solo over what you wrote. And tap the palette to recolor the entire app with 21 handpicked themes, a few suspiciously reminiscent of your favorite films, albums, and bands. Features: • 3 full rings with support for all major and minor keys • 36 interactive notes/chords on the circle • Scales tab — see any scale on guitar or piano, color-coded by degree - The five CAGED shapes plus full-neck patterns (Diagonal, 3 notes/string) - Chord-tones view to spotlight the root, 3rd, and 5th - Licks Library — ready-made riffs in blues, rock, metal, country, bluegrass, jazz, and worship - Tempo control to run any scale up and back - NEW! Backing chords and drums to play along with - NEW! Solo mode — the app improvises a new solo every time • Guitar chord charts flip vertical or horizontal • 21 color themes — personalize the wheel, badges, and chord charts (just tap the palette icon) • Key badge in the center of the wheel — your current major and relative-minor key, plus its key signature, at a glance • Toggle between guitar and piano modes — affects both sounds and diagrams • Synthesized piano with rich, multi-voice triads • 36 real guitar audio recordings of every chord on the circle • 36 guitar chord charts — drawn right in the app and themed to match; just tap and hold to learn • Piano chord diagrams with highlighted notes on a keyboard • Chords tab to see all chords in each key, with major/minor relationships • NEW! Songs — write verses, choruses and bridges, saved automatically • NEW! Share any song as an audio file • Progressions tab — build your own progressions and hear them play back - Pick any major or minor key (24 total) - Tap I, ii, iii, IV, V, vi, vii° to add chords to your track - Follow along — see the current chord and what's next as it plays - Tempo control with tap tempo, and loop for practice - Strum patterns: Whole, Quarter, Eighth, Folk, Rock - NEW! Drums: Rock, Funk, Disco, Half Time and Ballad - Built-in metronome The outside ring of the circle has all the major keys. Tap any of them to hear and change the key. The color coding tells you which number each chord is. The middle ring has all the minor keys, and the inner ring has the diminished chords. Tap any chord to hear it, or tap and hold to see how to play it on guitar or piano! Use the Chords tab to play songs in any key and transpose on the fly. Use the Progressions tab to compose, practice over a loop, or hear common progressions like I-IV-V or ii-V-I in any key. Use the Scales tab to find the notes to solo over any chord — pick a pattern, target the chord tones, and grab a lick to get you started.