Born in Frankfurt, Germany, Troyer settled in San Francisco sometime before 1871, where he became known as a violinist, pianist and teacher of music and began using the name Carlos.
[9] In 1886, his publication of a transcription/adaptation of Apache Chief Geronimo's Own Medicine Song marked the beginning of a long professional interest in Native American music.
[10] Eventually, his works became further romanticized and amerindian, culminating in his final published piece, Midnight Visit to the Sacred Shrines, a Zuñian Ritual.
[12][13] Contemporaries including Charles Lummis and Frederick W. Hodge noted these claims as lies or exaggerations, intended to boost credibility for his lecture tours later in life.
With the possible exception of Barbara Tedlock in her Songs of the Zuni, modern critical analysis of the ethnographic value of Troyer's transcriptions are negative.