He left X Japan in 1992 due to musical differences and a fight with Yoshiki, and proceeded to play with Loudness, leave Loudness to form his own off-and-on band D.T.R., and experienced a major Creator Breakdown due to a variety of issues he'd struggled with throughout his life. He slowly returned from his Creator Breakdown to play with the soon-to-be-disbanded D.T.R., Otokaze, Kings, and with The Killing Red Addiction and TAIJI WITH HEAVEN'S.
Taiji was (and is) considered in some circles to be among the world's top rock bass players. Especially skilled at slapping and tapping, he was credited with teaching the late X Japan and solo guitarist hide his own guitar tapping technique back when they played together.
In 2009, he dissolved D.T.R., firing all but one of his bandmates claiming a copyright issue, and claiming that he was going to reform D.T.R. as Death To Rive. He played with The Killing Red Addiction (members Dynamite Tommy [v], Kenzi [d], Taiji [b], Tatsu [g]), played with his solo act "TAIJI WITH HEAVEN'S," which became Taiji Sawada Project, then Taiji and Shu Project (TSP) (members Taiji [b], Shu [g], Takanari [d] who was replaced with Hina from Crazy Danger Mile on drums) and as a session musician with other bands including a return to Loudness for the Munetaka Higuchi memorial shows in 2009 and 2010.
In July 2010, Taiji rejoined X Japan as a bassist, playing on stage at the Yokohama Nissan Stadium reunion live, though he did not join X Japan for the North American tour. He had also been a model and jewelry designer for Arizona Freedom, a Japanese rock couture house, and also played with Loudness at the 2009 and 2010 memorial concerts for Munetaka Higuchi. He had planned for a return to the rock scene with Taiji and Shu Project...
In 2011, he got into a fight with his manager on a flight and was arrested for causing a disturbance on a flight. He was alleged to have committed suicide by hanging, dying in custody July 17, 2011, but this cause of death is highly disputed due to witness testimony claiming that he had no neck wounds or bruises. There was pressure to reopen a homicide investigation into his death and the suspicious circumstances.
His music and performances provide examples of
- The Alleged Car: Zigzagged: He told a story in his autobiography about being one of the only two licensed drivers in the indies days of X Japan (along with Yoshiki), which included all five band members and their gear getting to gigs in a small economy car that very much matched this trope. Averted with when X Japan got signed, and he bought a custom Harley-Davidson bike imported from the US. And played straight again less than four years later, when he had to sell that bike as a result of the financial collapse of his life.
- Artistic Stimulation: Taiji was a heavy user of alcohol, weed, and stimulants. This reflected a lot in his music, and his heavy and open use of drugs was part of the reason he was kicked out of X Japan.
- Gratuitous Rape: Kill Trap for D.T.R., which was probably the lowest point of his musical career in general, with "I'm gonna rape you" as the song's open and a repeating line along with "you're going to rape me." It may be about a Real Life tragedy (some of the lines hint at possibly the Junko Furuta tragedy - the same thing The Gazette's song Taion is about) but the Lyrical Dissonance makes it at least dangerously close to this trope.
- Horrible History Metal: His solo magnum opus for D.T.R. Voices Of The Dead, opens with a sample of a news report on the First Gulf War, overlaid with a sample of a baby screaming. It turns into a fusion of Western and metal bemoaning the tragedy of war and from the perspective of those killed in it.
- Neoclassical Punk Zydeco Rockabilly: Not as obviously, extremely so as hide's work, but D.T.R. is what happens when you fuse Space Western, What Do You Mean, It Wasn't Made on Drugs?, blues rock, and metal (or take metal out of the equation for an acoustic western sounding album, which was what the acoustic album is) with the occasional Protest Song.
- Rearrange the Song: Voiceless Screaming was rewritten countless times by Taiji.