Complex sentence: While the rest of the show was set in a studio, the Corries were filmed in location: sea songs were sung in a harbour, "The Battle of Killiecrankie" was sung at the Pass of Killiecrankie, and so on.
Split into simpler sentences: While the rest of the show was set in a studio, the Corries were filmed in location. Sea songs were sung in a harbour, "The Battle of Killiecrankie" was sung at the Pass of Killiecrankie, and so on.