I remember stumbling upon this piece during my undergrad and being quite surprised by what I heard. It really is not your typical Bernstein, and it is unclear if that is for better or for worse.
A Brief Overview of Bernstein
There is very that could be said here that is not already covered in far greater details with far greater accuracy somewhere else (like here). He is probably best known as the resident conductor of the New York Philharmonic for eleven years (1958 to 1969), and as a composer of such mainstream classics as West Side Story, Trouble in Tahiti, and On the Waterfront. He was a prolific educator, lecturer, and humanitarian, and unabashedly championed the next generation of musicians while uncovering and promoting the pieces that might otherwise have been lost (eg. Charles Ives' Symphony No. 2).
A bit about the piece
Jubilee Games is one of Bernstein's last pieces, written in 1986 for the 50th anniversary of the founding of the Israel Philharmonic, with a slight nod to Bartok's Concerto for Orchestra, also celebrating its 50th anniversary with the Boston Symphony Orchestra. It is a four movement work for large orchestra and choir.
Decidedly, the first two movements are very un-Bernstein. They definitely pull much more from his more academic compositions such as his symphonies; definitely drawing on something much more Stravinsky-esque than previous works. However, the third and fourth movements easily pull back to a more familiar sound easily linked to Bernstein's Jeremiah Symphony (the third movement definitely recalls the 2nd of the latter).
The work as a whole has a really nice arc to it, and the magical lines that make up the final movement are made that much more sweet by the organized chaos that precedes it. It makes me a little sad that this work is not programmed as often as it is deserving, but is that not the case with most music?