There is more than one artist with this name:
1) An Australian heavy metal group (1994-present).
2) A U.S. based experimental rock trio (1996-present).
1) Since their inception more than 15 years ago Dreadnaught have established themselves as a cornerstone for Australian heavy rock audiences. The city Dreadnaught call home, Melbourne Australia, has spawned several “next big things” over the last decade.
Rovo is a psychedelic rock-jazz band founded in 1996 in Tokyo by former Boredoms guitarist Seiichi Yamamoto (山本精一), electric violinist Yuji Katsui (勝井祐二), and synthesizer/effects technician Tatsuki Masuko (益子樹), with Jin Harada (原田仁) on bass guitar, Hiroshi Nakanishi (中西宏司) on synths, and featuring two drummers/percussionists, the prolific Yasuhiro Yoshigaki (芳垣安洋) (of legendary improv noise group Ground-Zero) and Yoichi Okabe (岡部洋一).
Akaten (赤天) is a collaboration between Atsushi Tsuyama (of Omoide Hatoba/Acid Mothers Temple) and Yoshida Tatsuya (of Ruins/Koenjihyakkei). Akaten is experimental and somewhat ridiculous, focusing on different themes or objects to create a different musical style for every track.
The Advent may refer to the alias of techno artist Cisco Ferreira or the Christian metalcore band. aka Cisco Ferreira Longtime advocates of sonic terrorism even before banding together as the Advent in 1993, Cisco Ferreira and Colin McBean's assault on conventional techno flourished in part because of abundant glimpses into related styles, from electro and hip-hop to techno. Soon after leaving school, Ferreira began working as an engineer at Jack Trax Records, a job which enabled him to glimpse first-hand the work of such auteurs as Derrick May and Marshall Jefferson.
There are four different bands named Altered States, listed in order of popularity: a Japanese free/noise jazz / avant-prog group from the 90s, an 80s gothic rock band, a Bass music production trio from Manchester and a psychedelic rock band from Dallas. 1. If pure musicianship is the guiding criterion, Altered States are arguably one of the greatest guitar/bass/drums trios in the history of rock, which may strike some as an overstatement but the evidence is there for anyone willing to seek out the band's Japanese label releases.
===there are more than one artist named "Gestalt" ---1)
Gestalt was formed in 1982 in Lyon. The group draws from the musical Pantheon where Jim Morrisson and Léo Ferré, Hawkwind and Béla Bartok cross, and the most inventive formations of the moment, like Tuxedomoon or Mechanic. In this asserted eclecticism, it is especially its own way which Gestalt seeks. That of a dark energy rock'n'roll interfered research in the compositions.
Bubu was an Argentinean progressive band that only existed during some years in the late seventies and that only released one album called Anabelas. Although recorded in 1978, the album was not released until 1983 due to censorship from the dictatorship government at that time.
Bubu´s music is very intricate and original making their style hard to categorize. While Avant garde might be the best description, it still would not be enough, as this band also takes elements from Jazz, Symphonic prog and even some Zeuhl.
Blast is Known as 10 different artists:
1) A Japanese Indies rock band from Nagoya. They formed in 2001 out of the ashes of Lamiel and disbanded in 2004.
Vo: 維那 (Yuina) (Lustair → Lamiel → Blast)
Gu: 依織 (Iori) (Phobia → Lamiel → Blast → siva → cocklobin)
Ba: 秀朗 (Hiderou) (Another you → Theia → Lamiel → Blast)
Dr: 響 (Hibiki) (ORPHEE → Lapse → Another you → kein → Blast → GULLET → Rick → The Studs)
There are at least three bands called Ohm, one from Stockholm, Sweden and another from South Africa and lastly Chris Poland's Ohm: from L.A california. Ohm: is a Chris Poland (a former member of Megadeth who has also worked with Lamb Of God) experimental jazz fusion project formed by Robertino Pagliari and himself. The band was formed in 2002 and has released 3 LPs and a live album up to date. It should be noted however, that ohm is incorrectly tagged on last.fm... the true title of Ohm: includes a colon, according to Chris Poland this is due to their constantly changing drummers.