Grand Hotel - Procol Harem
Waiting for Columbus - Little Feat
Third choice is really hard, so have to list a few
Will the Circle be Unbroken - Nitty Gritty Dirt Band
Heavy Weather - Weather Report
Don Juan’s Reckless Daughter - Joni Mitchell
School Days - Stanley Clarke
So many others I would want in my library of 100; they may not be the best recordings, but I find them significant in the story of music, and can listen to them over and over which I what I want in a library of 100.