Here are the two search occurrences of "music" from the FCC amateur rules from http://www.arrl.org/part-97-text.
§97.113 Prohibited transmissions.
(4) Music using a phone emission except as specifically provided
elsewhere in this section;
(c) No station shall retransmit programs or signals emanating from any
type of radio station other than an amateur station, except
propagation and weather forecast information intended for use by the
general public and originated from United States Government stations,
and communications, including incidental music, ...
[bold text mine]
Here is how Merriam-Webster defines music:
a : the science or art of ordering tones or sounds in succession, in
combination, and in temporal relationships to produce a composition
having unity and continuity
b : vocal, instrumental, or mechanical
sounds having rhythm, melody, or harmony ...
I think those tones fit this definition, don't you?