How to practice 80/81 with play-along tracks?

Use the play-along backing track above to practice 80/81 in the key of C#. Listen to the audio with bass, piano, and drums, start by playing the melody, then practice improvisation and soloing over the chord changes.

What scales to use for soloing over 80/81?

For soloing over 80/81, recommended scales include: bebop, bebop major. Use arpeggio patterns over each chord to create melodic lines that follow the harmony of this jazz tune.

80/81 was composed by null. It is a swing standard in 2/2 time. The original key is Eb; this page shows it transposed to C#.

What key is 80/81 in?

The original key of 80/81 is Eb. The form is ABC with 27 bars. This page shows the chart transposed to C#.

What scales work for improvising over 80/81?

Recommended scales for 80/81 in C#: bebop, bebop major. Scales and arpeggios update in real-time as each chord plays, with context-aware analysis (e.g., Phrygian Dominant over secondary dominants).

How does the interactive backing track work?

The backing track plays with realistic walking bass, drum patterns, and voice-led chord voicings. Scales and arpeggios update in real-time as each chord plays. You can limit the fretboard zone for close-proximity voicings, toggle a reference melody, loop any section, and choose between multiple sound presets. Works for guitar, piano, bass, ukulele, and 7 more instruments.

Can I edit the chord chart?

Yes. You can modify the structure, chords, and arrangement of any standard to match your preferred version or create your own reharmonization.

80/81 in C#

()swing

Do Re MiC D E

Section A

G♯/C

♬

F♯add2/A♯

C♯/B

♬

G♯13

F♯m/C♭

♬

G♯/C

♬

F♯add2/A♯

C♯/B

♬

G♯13

F♯m/C♭

♬

Section B

♬

C♯/G♯♬

♬

C♯/G♯♬

Section C

♬

C♯/F

♬

G♯/C

♬

F♯add2/A♯

C♯/B

♬

F♯m/C♭

♬

BPM: 120

Chord Diagrams — 80/81 in C# (Guitar)

Display

FingerNoteDegree

Chord Voicings Closest Voicing

G♯/C

C♯

F♯add2/A♯

A♯ - C♯ - G♯ - F♯

C♯/B

G♯13

F♯m/C♭

C♯/G♯

C♯/F

80/81 in C#

Key of C#

C# major (or Db) sits in barre chord territory across the fretboard. Every chord demands precise barring, but the payoff is a bright, crystalline sound a half step above C that cuts through a band mix. C# is a intermediate-advanced-level key on guitar because no open strings fall within the key naturally, so every chord requires full barre technique. Expect to rely on barre chords throughout, which builds hand strength and unlocks the entire fretboard.

Voice Leading

The bass line moves through G# to C# (ascending perfect fourth), C# to F# (ascending perfect fourth), F# to C# (descending perfect fourth), C# to G# (descending perfect fourth), G# to G# (ascending unison), G# to F# (descending whole step), F# to G# (ascending whole step), G# to C# (ascending perfect fourth), C# to C# (ascending unison), C# to F# (ascending perfect fourth), F# to C# (descending perfect fourth), C# to D# (ascending whole step). The root motion by larger intervals (fourths and fifths) gives each chord change a strong, decisive character. When the progression loops, the bass returns from D# to G# by perfect fourth.

Scales for Improvisation

C# major pentatonic works because every note is either a chord tone or a safe passing tone — there are no avoid notes. For soloing, this means you can play freely without clashing. Over dominant seventh chords, C# Mixolydian adds the flat seventh for an authentic blues-rock edge.

swing2/2 · 27 bars · Form: ABC

Chords: G♯/C, C♯, F♯add2/A♯, C♯/B, G♯13, G♯7, F♯m/C♭, G♯, C♯/G♯, C♯7, F♯, C♯/F, D♯m7.

Scales for Improvisation C# bebop, C# bebop major.

Diatonic chords: See all chords in the key of C#