Complex sentence: The band started recorded "Idea" on January 1968 the songs are "Chocolate Symphony", "The Singer Sang His Song", "Down to Earth" and "I Can Lift a Mountain".
Split into simpler sentences: The band started recorded "Idea" on January 1968. The songs recorded were "Chocolate Symphony", "The Singer Sang His Song", "Down to Earth" and "I Can Lift a Mountain".