F Mixolydian Bebop — Viola

F Mixolydian Bebop is 8 notes to the octave (bebop family), drawn here along the Viola's CGDA strings with every F named, so home is findable from any finger.

Mixolydian with a passing major 7th between the b7 and the octave — the bright, bluesy dominant sound with a chromatic slide that keeps every chord tone on a downbeat. Slick, swinging, and quintessentially bebop.

Heard in: Jazz lines over dominant seventh chords, blues changes, and rhythm changes — the workhorse bebop scale.

Because the strings climb in fifths, one hand position covers a wide span of the fingerboard — four fingers, a fifth of range per string, and the same finger pattern repeating across every neighbouring pair. Learning a scale here is mostly learning WHICH position it wants and where the shifts fall.

Open-string drones: every one of the Viola's 4 open strings belongs to F Mixolydian Bebop — the C string (the fifth), the G string (the second), the D string (the sixth) and the A string (the third) — so they can ring beneath the line as a fixed reference.

The C string and the A string are chord tones of the F tonic triad, so they stay consonant against every degree of the scale. The C string sits a perfect fifth above F, which is the interval that makes a held open string read as modal rather than merely in tune.

Play it slowly with a long bow, one note to a stroke, and listen for the notes that pull sharp or flat against the open C and A. Intonation on this instrument is a conversation with the open strings — nothing on the fingerboard decides it for you.