Andreas formed Seventh Wonder alongside guitarist Johan Liefvendahl and drummer Johnny Sandin after their previous band fell apart.

The music turned towards the side of progressive metal, and as the band was joined by keyboard player Andreas "Kyrt" Söderin late 2000, the new sound was cemented further.

Blomqvist's playing style frequently incorporates techniques such as fretboard tapping and sections of fast arpeggios, such as his bass solo in Walking Tall from Waiting in the Wings.

He has listed Marcel Jacob (Talisman, Yngwie Malmsteen) and Thomas Miller (ex Symphony X) as his most important influences.

Blomqvist also does the majority of Seventh Wonder's interviews, writes much of the music and appears to have been the driving force in the band.