GRAMMOPHON 19527 Matr. Nr. 355-bg (ca.Februar 1926). "Who? (Wer)" (Jerome Kern) - Foxtrot. Marek Weber mit seinem Künstler-Ensemble vom Hotel Adlon, Berlin
This is an early electrical recording, but GRAMMOPHON changed to another electrical recording process early in 1927 which provided a rich and natural sound (e.g. hear "Suleika" played by Efim Schachmeister - also on this channel!)