Person · Male
関口将史
cellist
- From
- Tokyo, Japan
- Since
- 1983–present
- Releases
- 0
Member of
Links
Official
Reference
Also known as
Sekiguchi Masafumi
Identifiers
- MusicBrainz
- 5ed7bd69-5bbd-4206-a37b-d07c36e20603
Data from MusicBrainz, saved 11 Nov 2026. Photo from Wikimedia Commons, covers from the Cover Art Archive and Apple Music.