Hour 2: How does a composer approach the creation of a newly commissioned work? We’ll spend this hour with Jake Heggie who’s in town for the premiere of his new “Ahab Symphony.” The UNT Symphony Orchestra, the Grand Chorus, and tenor soloist Richard Croft will perform the work Wednesday at 8 p.m. at the UNT Murchison Performing Arts Center. Ticket information is available here. Tomorrow evening’s performance will also be streamed live via UNTMusicLive.com.