Here is another Horace Silver classic, Nica's Dream.This has a harmonic minor vibe (minor with a major 7th) vibe throughout. In this case, it is built around the concert Bbmi(Maj7) chord, with that scale being:
Bb - C - Db - Eb - F - Gb - A NATURAL - Bb
Practice that scale thoroughly before trying to improvise on this tune. It is an awkward key (5 flats concert) for wind players. This is another of those songs where the bridge is more conventional than the A sections. Simple AABA 32-bar song form.
This song is often done in swing , or with the A sections in Bossa and the B section swung. In this arrangement, we stay in the Bossa pattern throughout.