[2] When she turned seven years old,[2] she began playing the piano and went to study under Norah Drewett de Kresz, Ernest Farmer and Viggo Kihl as well as theory with Healey Willan at the Hambourg Conservatory.
[2] Krehm made her first public concert appearance at a newspaper contest at Bloor St. United Church in 1924,[4] and began teaching at age 13.
[1] She became a resident of the United States in 1929,[5] moving to the Chicago Musical Institute to study under the Swiss conductor and pianist Rudolph Ganz.
[1][3] She earned the Schubert Memorial Award by making three appearances alongside the Philadelphia Orchestra, the cash prize of the National Federation of Music Clubs,[1] and the Walter W. Naumburg Foundation Award on her debut in New York City at The Town Hall in December 1937.
[1][7][8] Krehm was made Bloch's selected soloist for his Scherzo fantasque with the Chicago Symphony Orchestra on December 2, 1950, and was the introducer of works by Jiri Antonin Benda, Norman Dello Joio, M.K.
[9] Reed Hynds wrote of Krehm's playing technique: "She had a comprehensive technique which expressed itself in flying fingers under rigid control, a sense of total color which was capable of minute dynamic adjustments, and an intellectual grasp which kept every phrase subordinate to her conception of the work as a whole.
"[10] According to Betty Nygaard King and Eleanor Kodofsky in Krehm's entry in The Canadian Encyclopedia, the pianist's work was identified "by high competence and a questing intelligence".