Gut core strings from Pirastro are available in three formulations:
- Oliv – Bass gut core string with chromesteel wrap on all strings. Oliv Bass has a dark, strong sound with big tonal volume. Used extensively for pizzicato play, they take high pressure on the bow. Medium tension. High C and Low B also available in Oliv.
- Eudoxa – Bass gut core string with silver wrap on all strings. Euxoda Bass is the queen of jazz pizzicato strings offering brilliant tone and long sustain. Medium tension only. High C and Low B also available in Eudoxa.
- Chorda – Bass gut core string with round wound silver wrap on the bottom two strings (A&E). the top two strings (G&D) have no wrap – they are plain gut. These are recommended for Baroque Play. Medium tension.