It was the beginning of the end for Genesis. The Lamb Lies Down on Broadway was the sixth studio album by and is their last to feature original frontman Peter Gabriel.
During their stop in Cleveland in November 1974, Gabriel told the band he would leave at the conclusion of the tour. The decision was kept a secret from outsiders and media all through the tour, and Gabriel promised the band to stay silent about it for a while after its end in June 1975, to give them some time to prepare for a future without him.
By August, the news had leaked to the media anyway, and Gabriel wrote a personal statement to the English music press to explain his reasons and his view of his career up to this point; the piece, titled "Out, Angels Out", was printed in several of the major rock music magazines.
In his open letter, he explained his disillusion with the music industry and his wish to spend extended time with his family.
Banks later stated, "Pete was also getting too big for the group. He was being portrayed as if he was 'the man' and it really wasn't like that. It was a very difficult thing to accommodate. So it was actually a bit of a relief.
Here’s Genesis performing the title track Live in 1978.