D#, Held by the Armonía
62 qualities on one root. Pick one for the grip and the section's job with it.
All 62 qualities on the root D#, across 10 families, drawn for this instrument. A son or a ranchera will use three or four of them; the rest are here for the bolero that reaches further.
Inside the armonía this instrument is the bottom of the armonía — the same mánico the vihuela is playing, an octave lower and with more sustain, which is what stops the section sounding thin under a full melody. Nothing here is a solo grip: the value of the shape is that it lines up with the vihuela's, so the pair arrive in unison as one attack with a low half and a high half.