She uses Ernie Ball strings and Dunlop Jazz plectrums. Ernie Ball provide the band with plectrums and guitar strings. Early sarod players used plain wire plectrums, which yielded a soft, ringing tone. Unlike other plucked instruments, like guzheng and pipa, plectrums and fake-nails should be avoided. Rather than bowing the strings, the orchestra players used guitar plectrums, creating a percussive effect. Whereas most plectrums are triangular in shape, the heike bachi is more square and angular. Filipino instruments are made from indigenous Philippine wood; plectrums, or picks, are made from tortoise-shell. Many plectrums, or guitar picks, are made from this black wood. It features a string section playing with guitar plectrums, producing a percussive sound. The left hand can also be used to play the bass strings without plectrums (picks). "Plectrum" has both a Latin-based plural, "plectra" and a native English plural, "plectrums". Plectrums produce a louder and clearer tone, which makes them suitable for orchestral use. Plectrums were traditionally made of bone, but are now made of plastic or wood.