From Metzmacher's bio: Ingo Metzmacher has recorded extensively for EMI Classics since 1992 when his first CD, “A Portrait of Charles Ives” with the Ensemble Modern, was nominated a Grammy Award and earned the Grand Prix from the Académie Charles Cros.
Metzmacher went on to record an orchestral arrangement of Conlon Nancarrow's Studies for Player Piano. Compared to the original player piano recording, Ensemble Modern is colorful, riveting, illuminating and an excellent introduction to that work.
From the Steeples and the Mountains is a programmatic work based on his mother's recollection of church bells warning of a fire started by lightning:
"Pretty soon the air was alive with the sound of ringing bells--but my husband stood outside on the back porch like a man entranced, till the bells finally died down and the fire was stopped."
Other more contemplative works on the CD include Adagio Sostenuto (At Sea) and Mists. His A Set of Pieces for Theater or Chamber Orchestra is also promising.
So, I had high hopes for the Ives CD. It is not the eye opener that Ensemble Modern's Studies for Player Piano was. This may be due to the somewhat incoherent music bundled on one CD. Unlike say the Philip Glass Etudes for Piano Vol. 1 CD (also in that used bin), this selection of music is unpredictable and chaotic. "Unpredictable and chaotic" probably being a fair characterization of Ives' music in general.