The Mixolydian Scale
From G to G on the white notes: the scale for dominant 7th chords like G7. The F natural is the note that pulls the music home to C.
36
Notation
Valves
G · 1+3
Beat by beat · G7
96bpm
60160
Piano sound: Salamander Grand Piano V3 — Alexander Holm, CC BY 3.0
Trumpet sound: University of Iowa Electronic Music Studios