Progressions in F# — Cuban Tres
Every chord the key of F# owns, charted on GCE and ready to loop.
F# major harmonises to F# – G#m – A#m – B – C# – D#m – E#°; F# minor to F#m – G#° – A – Bm – C#m – D – E. Each chord links to its Cuban Tres voicings, so a vamp in F# becomes a short list of stations before the first repeat.
Most of what a tres plays lives on two or three of these chords at a time — a montuno is a loop, not a journey. Choose the pair the tune leans on, set a figure over them, and let the repetition do the work the arrangement expects of it.