Assertion: violin's tuning | /r/AtLocation | perfect fourths
Facets:
Source sentences:
text: E A D G (the same, except for low C, which is a major third below the low E on a standard 4-string double bass) 5-stringed double bass – B 0 E 1 A 1 D 2 G 2 (a low B is added, so the tuning remains in perfect fourths)