Kosmische musik ("cosmic music") is a term which came into regular use before "krautrock" and was preferred by some German artists who disliked the English label; today, it is often used synonymously with krautrock. More specifically, it may describe 1970s German electronic music which uses synthesizers and incorporates themes related to space or otherworldliness; it is also used as a German analogue to the English term "space rock". The style was often instrumental and characterized by "spacy", ambient soundscapes. Artists used synthesizers such as the EMS VCS 3 and Moog Modular, as well as sound processing effects and tape-based approaches. They largely rejected rock music conventions, and instead drew on "serious" electronic compositions.