He has played with international musicians including Joachim Kühn, Tamar Halperin, Marius Neset, Andreas Schaerer, Émile Parisien and Vincent Peirani, and recorded award-winning albums.

[2] He recorded CDs as a member of the group Young Friends (Great German Songbook, 2005), with Winter (Different Kind of Stories, 2003), with Hans-Peter Salentin [de] (Beyond Your Thoughts, Sound of Silence), and with Nils Landgren (The Moon, The Stars and You, 2011), among others.

[3] In 2005 Wollny signed a contract with the label ACT Music + Vision on which he released several albums with his trio and in collaboration with other artists, such as Sauer and Nils Landgren.

"[7] In 2017, he was an artist in residence (Fokus Jazz: Michael Wollny) of the Rheingau Musik Festival, interviewed in a Rendezvous, and playing three concerts, improvising with Marius Neset in the first,[8] with vocalist Andreas Schaerer, Émile Parisien and Vincent Peirani in the second,[9] and finally with his trio and the Norwegian Wind Ensemble.

In 2011, they received the Neuer Deutscher Jazzpreis [de] (as a band, and for Wollny as the best soloist), and the Echo Jazz in the category Ensemble des Jahres national.

[12] In 2013, Wollny received the Preis der Deutschen Schallplattenkritik for his album Don't Explain – Live in Concert with Heinz Sauer, and the Bayerischer Staatspreis für Musik [de].