Here's a 12 Bar Blues in concert F (that means G on trumpet).
Notes of the G blues scale: G, Bb, C, Db, D, F, G
also useful: A diminished: A, C, Eb, F#
In this video, learn the techniques necessary to get the most out of this important trumpet skill.
Jonathan Harnum is a musician, author, and teacher with a PhD in music education from Northwestern University. He's the author of several music books, including "Sound the Trumpet: How to Blow Your Own Horn," "Basic Music Theory: How to Read, Write, and Understand Written Music," and "The Practice of Practice."