Observer Editor, Free
“Sonic Lunch”: Bank of Ann Arbor.
Musical entertainment by local and area performers. Today: Joe Hertler & the Rainbow Seekers. Energetic and lyrical Lansing pop-funk and soul quartet led by singer-songwriter Hertler. Opener: Ann Arbor-based R&B and soul singer Rachel Mazer. 11:30 a.m.–1:30 p.m., Liberty Plaza, E. Liberty at S. Division. Free. soniclunch.com, 662–1600.