Afterwards as you mentioned with his two songs Peter went on to be a solo artist, although he initially left because at that time he was already a father and wanted to take care of his kid. Then he became a solo artist with stuff like shock the monkey, in your eyes, solsbury hill.
Also the one on keyboard is Tony Banks, he usually is on keyboard through the history of Genesis, and if you'd like to hear how they sounded when Peter was lead I'll link you an album. Peter Gabriels is both lead singer and on the drums as he would go on after Peter's departure. " Practicing what you preach " could be like hypocrites such as you know how in certain religions like in Christianity there's love everyone equally but then when there's something taboo atleast according to certain crazed religious people, mind I'm not saying all religious people are like this only crazed ones would bat and eye at homosexual relationships even though they are suppose to treat people equally.