In episode 175 of the Guitar Music Theory podcast, I answer listener emails about:

• Using your thumb to fret the 6th string in barre chords and possible workarounds
• How to improve your rhythm and memorize songs more effectively
• The G form barre chord and how it's used in modern playing
• A theory-based analysis of Foo Fighters' use of pedal tones in chord progressions
• Why sus4 and minor 6 chords don't naturally occur in certain scale degrees
• Why guitarists sometimes play notes like F# over A minor—mixing scales in blues-based rock

Plus, I mention the JamZone app and how it can help you practice and play along with real songs.

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