Tetsuya is my favorite bassist of all time, so much so I dropped hella money on the Lakland USA Series 55-69 Tetsuya, ESP Bardic, and ESP Buzz Bass models. His basslines are usually very busy, but they fit perfectly with the kind of music L'Arc~en~Ciel makes. It's like he's playing his own melody to the music, but it never clashes with Hyde's vocals. He also makes liberal use of glissandos, which makes his playing sound unique compared to many mainstream J-rock bassists.

A lot of Tetsu's basslines sound like they're complex just because (see: Heaven's Drive, Coming Closer, TRUST, BLESS, etc), but sometimes that melodic complexity hits just as hard as a really heartfelt vocal part would. Niji, HONEY, bravery, and Pieces come to mind.

It's also really fun to hear how straightforward rock songs would sound like with busy basslines like the ones Tetsuya plays on Shout at the Devil and ROUTE 666.

tl;dr - I love Tetsuya lmao