OBLIGATO (Pirastro)

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Except for the steel-core A string, Obligato’s core is made of synthetic fibers, insensitive to humidity and temperature changes.   There is a break-in period as these strings stretch before becoming stable.  Some customers report it can take 10 days or so.  Brand is identifiable by orange thread with black spiral at the tailpiece end.

PricePitchWinding/CoreColor at peg endTension
$45.85Achrome winding, steel coreBlack at peg end17.8 kg tension
$49.85Dchrome winding, synthetic coreOrange at peg end14.2
$73.40Gtungsten winding, synthetic coreBrown at peg end13.8
$108.85Ctungsten winding, synthetic coreViolet at peg end12.6