Heirloom

12-bar blues in C: basic changes, shell voicings

Nathaniel School of Music, 2026

Key
C
Form
12-bar blues
Level
2

The three-chord blues (I7, IV7, V7) with left-hand shells.

Chords: C7 F7 C7 C7 F7 F7 C7 C7 G7 F7 C7 G7

Opening the practice room…

Where this comes from

Read from: NSM exercise generator (gen.py)

How: CC BY 4.0 (Nathaniel School of Music)

Free to share: free (NSM original) free (NSM original)

Download the score (MusicXML)