In the booklet of his CD "Schubert: Ländler" Pierre-Laurent Aimard finds very personal words of respect and thanks...
"[…] Trying to let the infinite delicacy of this music vibrate was made possible thanks to the sensitivity of the recording team - the understanding, careful and dedicated work of Christoph Claßen and Sebastian Nattkemper. Last but not least, it was made possible thanks to the incandescence of this companion of song and confidence that is the 353018 — this instrument created between 1954 and 1956, cared for by the attentive hands of Annemarie Schindler, and animated to an indescribable level for the sake of this project by Stefan Knüpfer. It is precious to me that this recording was filmed by Matthias Wagner, whose gaze in "Three Days in Toblach" managed exactly to hear the essence of these moments of silence and confession."