A very good song.
For the record, as far as I remember, I played piano on: Doin' All Right, Father to Son, Now I'm Here, Dear Friends, Teo Toriatte, All Dead All Dead. Notably NOT on Sail Away Sweet Sister - I got Freddie to learn it and play it with Roger and John for the backing track - I wanted his marvellous rhythm and percussive feel on piano - but yes on Save Me, Las Palabras de Amor, Flash and The Hero (plus organ on the Wedding). But from here on in we began using synthesisers and there were many excursions from us all into keyboard territory… The only pure piece of piano from this era from me is Forever - which was a doodle done live in the studio which I rescued for a bonus track later on.
There was an upright piano in the lounge, and they would sit together and sing along. I remember the band writing songs but not really practicing there as such. Songwriting involved sitting around knocking ideas about, trying out different tunes and words. That's how I got the piece of paper with the original lyrics to Doing Alright on it. I wrote in my diary Roger and Brian had been running through it, and Tim had also been scribbling some of the words.