FWIW wikipedia states, 'Rumi believed passionately in the use of music, poetry and dance as a path for reaching God. For Rumi, music helped devotees to focus their whole being on the divine and to do this so intensely that the soul was both destroyed and resurrected. It was from these ideas that the practice of
whirling Dervishes developed into a ritual form.'
Although i note there is a "citation required" at the foot of that text so it may be unreliable.
However there is a citation for Rumi's favourite musical instrument,
'Rumi's favourite musical instrument was the
ney (reed flute).
[23]'
Source:
Rumi - Wikipedia