[1] He excelled in singing and drawing and after graduation in 1912 he decided to become an artist, but his father did not agree.

[1] Only after he compelled teachers at the school of crafts to talk to his parents and suggested their son could become a glass painter, his father agreed.

In 1917, he graduated from the apprenticeship as a glass painter at the workshop of Eichin & Straub in Basel.

[3] He trained together with Otto Staiger, who commented that they created numerous stained glasses of Emperor Heinrich and the Basel Staff.

[4] His father then saw it appropriate that Albert Müller followed up on his studies with Cuno Amiet, with who he stayed for some time in the Oschwand between Langenthal and Burgdorf.

[5] Amiet's house became a meeting point for several artists at the time, such as Ferdinand Hodler, Hermann Hesse or Marianne von Werefkin.

[12] In October 1924, Otto Staiger Hermann Scherer and Albert Müller exhibited some water color paintings in the store windows of a book shop in the hope to break the exclusion from the exhibitions of the Kunsthalle.

[13] The exhibit drew quite some attention from the critics and was also described the art magazine Der Cicerone [de].

[13] Müller then invited Hermann Scherer to Obino for Christmas and New Year's Eve in the winter of 1924–1925.

[14] And in the night of New Year's Eve, Albert Müller, Hermann Scherer and Paul Camenisch founded the artist group Rot-Blau in Obino.