Don't bother with scales wen ur jus startin out blowin over a tune, it was written by bird so why not do wat he did - use chord tones and passing tones! Jus make sure u know ur arps across the whole neck then pick a real slow speed (say 48bpm), then play the arps in 8th notes with the metronome on 2 & 4 making sure as u change chords/arps u stay in the same direction (if ur goin up Fm7 an u get to the Bb7 then find the nearest chord tone/arp note above it an keep goin up until u gotta change direction cus u run outta notes in that position or the chord changes). I think tht made sense, ur basically making sure u nail the changes before u start to bring anythin else into the equation
