He currently endorses Wilkins basses, as well as Fender Precision Basses and Taurus bass amplification. Most electric guitars and electric basses use magnetic pickups. Acoustic guitars, upright basses and fiddles often use a piezoelectric pickup. It is used in many lower-cost instruments like guitars and electric basses. They employ a variety of musical sources, including acoustic guitars and complex synthesized basses. Alembic is an American manufacturer of high-end electric basses, guitars and preamps. Carmine Rojas played a Fender Precision Bass and two ESP custom basses. Violin basses (VB), Zemaitis Guitars and addition to various other models. They produce a bass that differs somewhat in timbre from nylon basses. He plays Fender American Jazz Basses and Ampeg Amps. He mainly uses Fender basses and Ampeg and Ashdown amplifiers. The opening bars, with cellos, basses and bassoons, convey a new approach to timing. The score has short solos for three tenors, baritone and two basses. Freeman plays Fender Precision and Jazz Basses. They are usually black Squier Precision Basses with white pickguards.