Complex sentence: The Capella consisted of some 18 members and director Hryhory Nazarenko playing diatonic Kharkiv-style banduras with the newly developed mechanism designed by the Honcharenko brothers.
Split into simpler sentences: The Capella consisted of some 18 members directed by Hryhory Nazarenko. They played on diatonic Kharkiv-style banduras with the newly developed mechanisms designed by the Honcharenko brothers.