In the recording phase, Robin and Maurice now mainly played the role of backing and harmony vocalists, and even in that capacity Barry did many of the vocal dubs himself as he went over and over the recorded work. Robin contributed one solo lead vocal ("Living Together") which was sung in falsetto with Barry providing alternating lead vocals in his normal register. This was Robin's least amount of lead vocals on any Bee Gees album with the exception of 1970's "Cucumber Castle", for which he was not part of the group at that time. As with the last four Bee Gees albums, Maurice did not have any solo lead vocals. While Barry is the most prominent lead vocalist on "Too Much Heaven," it features a mix of more than 20 vocal parts, including 6 tracks featuring Barry alone (3 on falsetto and 3 in chest voice) plus another 3 of Barry, Robin, and Maurice singing lead in chest voice together; while Barry is the most prominent.