In music, "triple" refers to a meter or time signature that has three beats per measure. For example, a 3/4 time signature indicates that there are three quarter-note beats per measure.
"Treble" refers to the high-pitched range of voices or instruments. The treble clef, also known as the G clef, is used to notate music for higher-pitched instruments such as the violin, flute, and trumpet.
The term "outside music" is not widely used in music theory or practice, so its meaning in this context is unclear. It could potentially refer to music that is not part of the mainstream or is experimental in nature, but this is just speculation without further information.