July 5 Friday evening we get an all-Tchaikovsky program, with Rafael Frühbeck de Burgos on the podium and Joshua Bell as violin soloist. The composer's Violin Concerto will precede the intermission and his Symphony No. 5 will follow it. The BSO's performance detail page has links to program notes and audio previews. The concert is scheduled to begin at 8:30 p.m., Eastern Daylight Saving Time (1/2 hour later than Symphony Hall concerts. "Pre-game" programming on Classical New England begins at 7:00, according to their website. But it looks as if they expect the Friday and Saturday concerts to begin at 8:00. I don't know if the later concert time will lead to an adjustment of the starting time of the preview show.
At any rate, Classical New England will be broadcasting and streaming all three concerts each weekend of the season.
July 6 Another concert conducted by Maestro Frühbeck will consist of a single work: Mahler's Symphony No. 3. Again consult the performance detail page for links to audio previews and program notes. Once more, the concert is scheduled to begin at 8:30. You can make your best guess about when the warm up on Classical New England will start.
July 7 Sunday's matinee is scheduled for 2:30 p.m. Doubtless, there will be preliminaries at 1:00 or 2:00. This concert will not be performed by the Boston Synohiny but by the Boston Pops under the baton of their conductor, Keith Lockhart, wth guest artist Vince Gill. The BSO site doesn't give much more information, but the CNE page on their BSO broadcasts/streams gives the following snippet:
On Sunday, special guest star Vince Gill joins the Boston Pops and conductor Keith Lockhart for a tribute to the American West.