Nicoline Florentine Zedeler was born in Stockholm in 1889 (some sources give 1892), and immigrated with her family to the American midwest when she was five years old.
[4] Zedeler toured the world as a featured soloist with the Sousa band,[5] including concerts in Australia, and many in Europe and North America.
[8] After she married, Nicoline Zedeler-Mix continued as a concert performer, and taught violin at the American Institute of Applied Music in New York City, on the same faculty with Theodore Spiering.
[11] With her husband, she founded the Thirteenth Sound Ensemble in 1927, and promoted the work of Mexican composer Julián Carrillo.
[13] Nicoline Zedeler married fellow Sousa tuba musician Emil Mix in 1912.