There are several bands called Abstract.
1. 1982 punk band from Götegorg, Sweden
2. instrumental metal band from Banská Bystrica, Slovakia.
3. melodic Metalcore band from Voronezh, Russia.
4. DJ Abstract, aka Alex Posell, a Drum and Bass DJ from the late 1990s/early 2000s.
5.Mathy cyber-grind from France.
6. Short-lived late 90s uplifting trance act from Israel.
7. Technical thrash metal band from Juiz de Fora, Minas Gerais, Brazil. Read more on Last.fm