Tyson,
What we used to call "modern" or "contemporary" music. Not for people whose idea of classical music goes no further than say, Rachmaninov or Rimsky-Korsakov. Lots of dissonance and jagged melodic lines. I also love the symphonies of Holmboe, Aho, and Robert Simpson, music that is basically tonal, but full of dissonance. Frankel supposedly is serial, but it seems tonal to me, but maybe I'm used to it. The short pieces included as filler are very easy on the ear, various overtures, etc., probably a lot like his film music.
This page from Tower gives you samples from the discs. Taken in such short fragments leaves you with no clue to its overall impact, but will give some idea. I hope you try them.
Randy
http://www.towerrecords.com/product.aspx?pfid=2713703A sampling of tracks supposedly from Sym. 7 & 8 from where the disc is listed alone, brought instead of Frankel, the Barber Violin concerto. Talk about false advertising!.
