Assertion: lute's string | /r/HasProperty | added
Facets:
value: inevitably
type: DEGREE
Source sentences:
text: But during the Islamic era the musical box was enlarged, a fourth string was added, and the base for the tuning pegs (Bunjuk) or pegbox was added.
text: Somewhat later the 5th string was added, tuned to G or rarer to E, adding to the low range and also giving a diapason.
text: Later, additional strings were inevitably added.