Twenty-five keys is the sweet spot for a first instrument, wide enough to play a real melody and narrow enough that a 3-year-old can reach both ends without moving. Pink from cabinet to key edges, this one leans on 6 instrument tones, 6 accompaniments, 8 percussion effects and 15 demo tracks, with adjustable speed and volume and chord support for later. Lighted-key teaching mode shows which note comes next, so a child practices without an adult sitting alongside. The 7-by-4.5-inch music stand pulls out of its slot. Standing 15 by 9 by 10.5 inches and weighing 5.5 pounds, the cabinet has rounded corners and a stable base, and 4 AA batteries power the whole thing.