C to D7 Chord Change

C to D7: what changes

Moving from C Major to D 7 changes 4 of the guitar's 6 strings — a moderate change.

Keep a finger down through the change — fret 1 on the B string stays put on both chords.

Songs that use C and D7 together

C and D7 appear back to back in 4 songs in the String Warrior songbook: