Yes, 'Trumpet Vine' is her best song. Agreed, she did so many, many great songs. 'See Here' and 'Slender' from her best album Poet's Heart, 'Calgary', etc. etc.

And don't forget: 'You' from her relatively underrated first album 'Breezes'.

She did some great covers too: Paul Siebel's 'Then Came The Children', Gil Turner's 'Carry It On'. She did a great job adding music to Woody Guthrie's 'One By One'. Far far better than the poor, recent, Billy Bragg & Wilco-version.