Banjo Cmaj7 chord (Sawmill)C major seventh on the 5-string banjo: 2 4 0 2, and 3 more shapes

Frets, string 4 to string 1: 2 4 0 2 (open position)

1. String 4 (D): 2nd fret, index finger, E
2. String 3 (G): 4th fret, ring finger, B
3. String 2 (C): open, C
4. String 1 (D): 2nd fret, middle finger, E
5. String 5, the short g: open, G, in the chord

Sounds: E B C E  ·  Cmaj7 is C, E, G, B (1 · 3 · 5 · 7)

The 5th string: the short g is the 5th of Cmaj7, so let it ring.

Sawmill tuning: gDGCD, the short 5th string first, then strings 4 to 1.