He is the bandleader of the electronic music group Tangerine Dream which he joined in 2005.

He was chosen to continue as leader of the group by founder Edgar Froese shortly before his death in 2015.

As a child, he learned violin, piano, drums, and flute; and was drawn to classical composers such as Engelbert Humperdinck, Wagner, Telemann, Smetana and Mozart.

[6] Before joining Tangerine Dream, Quaeschning worked as a producer for the band Minory.

Afterwards, he began to tour with Tangerine Dream behind the scenes in 2003 before joining them two years later.