Minimal wave is a broad classification of music that comprises obscure, atypical examples of genres such as new wave, stripped-down electronic or synthesizer music, synth-pop, post-punk, and coldwave. Most of the music tends to focus on electronic, pre-MIDI instrumentation and themes of sincere, rather than ironic, detachment. The terming of "minimal wave" draws some contention. Although much minimal wave is classified in the late 1970s and early 1980s and subsequently appeared on bootleg and one-off compilations, the genre didn't have a name until a record label of the same name began releasing compilations and reissues in the mid-2000s.