Conversation so far:
what happened in 1987?
1987's Music for the Masses saw further alterations in the band's sound and working methods.
what were some of the alterations?
For the first time a producer not related to Mute Records, Dave Bascombe, was called to assist with the recording sessions.

Question: what music did they make?
Self-contained rewrite: what music did Depeche Mode make?