Schreiner was born in
Nuremberg,
Germany. His parents were Johann Christian Schreiner and Margarethe Schwemmer. Johann and Margarethe joined the LDS Church in 1903, and the local congregation held meetings in the family's home. Schreiner performed in public for the first time at age five, and after he was
baptized at age eight was almost immediately appointed as a
Sunday School organist. In 1912 Schreiner moved with his family to Salt Lake City. Among his early instructors on the organ was
John J. McClellan. Schreiner first performed on an organ professionally during the fall of 1917 at the American Theater of Salt Lake City. In 1920, just after graduating from high school, he took a job as a theater organist at the Rialto Theatre in
Butte, Montana. Schreiner first performed in the Salt Lake Tabernacle at age 20. That same year he left on a
mission to
California. He served as a missionary under
Joseph W. McMurrin. In early 1924, he was presiding over the Los Angeles
Conference which had 35 missionaries. In 1924, just after returning from his mission, Schreiner was appointed an assistant organist of the Salt Lake Mormon Tabernacle. Six months later Schreiner took a leave of absence from this appointment to go to Paris to further his musical studies with Henri Libert,
Charles-Marie Widor and
Louis Vierne. In Paris, Schreiner would associate with other Utahns at the home of
James L. Barker. Schreiner married Margaret Lyman, the daughter of
Richard R. Lyman and
Amy Brown Lyman, in 1927. They had gone to high school together, but did not really start dating until they were both studying in Paris. ==California career==