The II–V–I
Dm7, G7, Cmaj7: the most important chord move in jazz. Improvise with D, E, G, A and B: they sound good over all three chords.
38
Phrase
Your notes
Valves
D · 1+3
Example solo
Bar 1 of 8 · Dm7
110bpm
70170
Piano sound: Salamander Grand Piano V3 — Alexander Holm, CC BY 3.0
Trumpet sound: University of Iowa Electronic Music Studios