Initially formed as a solo project for Terutsugu Hirayama in 1983, later forming a full lineup after the disbanding of NOVELA.
Since 2000, the name "TERU'S SYMPHONIA" had been shelved in favour of projects like Queen Mania (Queen tribute band), then the official tribute band NELFELTI with all the main band members.

Current Members (NELFELTI)
- Terutsugu Hirayama (guitar, vocals, synthesizer, leader, main songwriter) ... Scheherazade, ex-NOVELA, original creator and director for NELFELTI
- Megumi Tokuhisa (vocals) … ex. MAGDALENA [マグダレーナ]
- Kohsuke Endoh (guitar)
- Syouichi Aoki (keyboard) ... ex. STARLESS
- Megumi Yamauchi (keyboard)
- Naoyoshi Nishiguchi (bass)
- Koji Morita (drums)
- Naomi (narration)

Former Members
- Motoi Semba (keyboard) … also participated on "Castle of Noi" and "Symphonia"
- Yasushi Inoue (bass)
- Hideaki Furui (drums)
- Sunao Hikida (drums)
- Chiezo (keyboard)
- Jutaro Ohkubo (bass) ... Scheherazade, STARLESS
- Junichi Sato (drums) ... after leaving, joined GALNERYUS and TERRA ROSA

Solo-Project Members
- Kaori Shimomachi (vocals) … also on NOVELA's HARMAGEDON STORY albums (K25G-7134 / K28G-7212)
- Ryuji Sasai (bass) ... ex. NOVELA
- Ryuichi Nishida (drums) ... ex. NOVELA

Only Participated on "Symphonia"
- Bunmei Ogawa (keyboard) ... SCANCH [すかんち]
- Etsuko Kuroda (vocals)
- Kazuhiro Miyatake (flute) ... Mr. Sirius [ミスターシリウス]