As part of an online marketing campaign for the Walkman media player over the past few years, Sony has produced over a dozen short videos featuring a stellar assortment of underground Japanese musicians cutting loose in the studio.

DJ/keyboardist Tucker

Fuyuki Yamakawa drops a flurry of skull-thumping, mouth-tweaking beats.

Chinese bluegrass

“Chinese bluegrass” performed by Mei Han’s Red Chamber 紅庭 with John Reischman and the Jaybirds. The instruments include an iluqin, mandolin, bass, pipa, guitar, sanxian, banjo, and ruan. The song is “Katy Hill.”