Complex sentence: Joan of Arc are known for their use of electronics, samples, and multi-track recordings in their songs-some songs on "The Gap" contained over 100 tracks-although recently they have been writing in more traditional terms.
Split into simpler sentences: Joan of Arc is known for their use of electronics, samples, and multi-track recordings in their songs (some songs on "The Gap" contained over 100 tracks). Although recently they have been writing in more traditional terms.