F Phrygian — Viola

F Phrygian is 7 notes to the octave (modes family), drawn here along the Viola's CGDA strings with every F named, so home is findable from any finger.

Very dark minor with a half-step above the tonic. Spanish, Flamenco, and metal flavor — exotic, tense, and mysterious.

Heard in: Flamenco, metal, dark film scores — Carlos Santana solos, Joe Satriani's "War", Moorish and Andalusian music.

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: one of the Viola's 4 open strings belongs to F Phrygian — the C string (the fifth) — so it can ring beneath the line as a fixed reference.

The C string is a chord tone of the F tonic triad, so it stays 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.

The G string, the D string and the A string sit outside F Phrygian: stop them rather than let them sound through the phrase.

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.