Solo violin. The music is harmonically sophisticated, reaching for something different, bordering on modern, but with one foot still grounded in romantic. Soloist's violin tone, musicial sensitivity and phrasing are beautiful. The natural hall sound is large and a little dark, but it suits the music. Echo is not a problem, good diffuse reverb. Typical Naxos great recording quality.
Edit: My above comments don't reflect the great music on this disk. the compositions and interpretation are really great. it is an adventure into new places, but is not intimidating or confusing. Inspiring, refreshing, ballsy, bold, confident, clever.