By VIVIEN SCHWEITZER

A Busy Soloist, Working at Collaboration

Some soloists spend their lives shuttling around the world, trotting out standard works for the umpteenth time. Others often refresh their repertory and always seem to have some innovative project under way. ... The violinist Midori falls into the latter category.

For her concert at the 92nd Street Y on Saturday evening, she programmed standard fare. Not that there was anything standard about her performances, with the Turkish pianist Özgür Aydin.

Aydin's lithe, sparkling touch brought out the sunny qualities of the outer movements [of Mozart's Sonata in E-flat K 380], and his poised reading of the Andante con moto beautifully complemented Midori's penetrating playing.

That these two musicians are regular collaborators was evident in each of their finely wrought but free-spirited interpretations. The eerie musings of the first movement of Shostakovich's Violin Sonata (Op.134) unfolded here with plaintive intensity. The no-holds-barred ferocity of Midori and Mr.Aydin's playing vividly illuminated the manic, almost deranged moods of the second-movement Allegretto and the solo cadenzas in the finale.

A more subdued agitation permeates Schumann's Violin Sonata No. 1 in A minor... The musicians offered an intimate interpretation that conveyed the work's restless energy and plumbed the searching dialogue between the two instruments.