Section of three of our target spectra: M151, NGC 5927-05, and T021. The spectra are arranged in order of increasing S/N. Two blue lines (to the left) indicate the location of the Ba ii and Zr i lines at 614.17 nm and 614.31 nm, respectively. The five red lines indicate the position of the Si i line at 615.51 nm, the Na i lines at 615.42 nm and 616.07 nm, and the Ca i lines at 616.13 nm, and 616.64 nm, respectively.