In just one season, “Glee” has become an incredibly powerful force in the world of choral music. This 9-minute medley captures the highlights and spirit of that first season in a quick-hitting, fast-paced style of arrangement, and includes songs from the most memorable episodes: “Don’t Stop Believin’,” “Jump,” “Shout It Out Loud,” “Physical,” “Like a Prayer,” “To Sir, With Love,” “Keep Holding On,” “Lean on Me,” “Somebody to Love,” “Any Way You Want It/Lovin’, Touchin’, Squeezin’.” Duration: ca. 9:00.