Thank you Derekb for downloading the piece. I hope you will like to play it.
@Fabbri: When I remember well, Wulfin Lieske recorded a CD some twenty or thirty years ago with some of the Impromptus for guitar solo. I love „Der Lindenbaum“ for decades, and yes, I sing it (mostly in the car, but you wouldn‘t like to hear this
). Perhaps it will work as an transcription, I will try.