Rajatarangini references and "vidyAdhara"

[Sudalaimuthu Palaniappan]

Dear Indologists,

I need help with two issues.

1. Monier-Williams gives the following references from Rajatarangini for
"cAkrika":

 "a companion" Rajat. vi , 272 ; "a companion" , v , 267

I would appreciate if anybody can give the actual text and conventional
explanations for these two occurrences.

2. Does the Sanskrit tradition ever associate vidyAdharas with music-making
(similar to gandharvas)?

Thanks in advance.

Regards
S. Palaniappan