A homegrown CD of Baltimore-based classical guitarist and Peabody Insitute faculty member Manuel Barrueco is among the Grammy nominees for Best Instrumental Soloist (without orchestra). Solo Piazzolla is devoted to the music of Argentinian composer Astor Piazzolla, best known for his imaginative use of the tango. This is, remarkably, the first recording by the Tonar label, which was founded last summer by Barrueco's manager, publicist and significant other Asgerdur Sigurdardottir. She and Barrueco produced the CD, which was mastered at Peabody. Grabbing a Grammy nomination right off the bat certainly fulfills Tonar's mission of preserving and promoting Barrueco's artistry. The awards are on Feb. 10.