If Christopher Greenleaf, the artistic advisor to La Grua Center’s Music Matters classical music series, advises that hearing a particular work for the first time is “a moving, sometimes shattering experience,” we’d best pay attention.

This, after all, isn’t David Lee Roth, who, upon being asked if a particular experience was “awesome,” replied that, to him, a sack of White Castle hamburgers is awesome.

Well, in fact, now that I think about it, Roth is correct. A sack teeming with White Castles IS awesome.

But in a more artistically aesthetic context, Greenleaf’s “moving and possibly shattering” assertion was in assessment of Shostakovich’s Viola Somata, Op. 147. See, hear and judge for yourself Saturday when violist/violinist Amadi Azikawe and pianist Olga Vinokur visit Musical Masterworks to undertake the piece.

The virtuosos will also perform Medtner’s Canzona Matinata as well as a series of chamber duo masterpieces by Rimsky-Korsakov, Tchaikovsky, Rachmaninoff and Glazunov.

Music Matters, 5 p.m. Saturday, La Grua Center, 32 Water St., Stonington; $20 online, $25 door; lagruacenter.org.