Bob Culbertson’s Expanded Alto tuning has identical string relationship to the 10-string Matched Reciprocal™ tuning but transposed up a major 6th on both sides.

Melody
1. A
2. E (-4th)
3. B (-4th)
4. F# (-4th)
5. C# (-4th)

Accompaniment
6. A
7. E (+5th)
8. B (+5th)
9. F# (+5th)
10. C# (+5th)