Della can play anything her owners type into her using Cakewalk, a music software program. Her performances are stored on an iPod and played through a speaker. Della, herself, is note-perfect, unless she is rebelling because of too hot or too cold temperatures, or unless her owners have programmed “keybos” into her. She has been a lifesaver as a free practice accompanist or when the human accompanist has not shown up. Della is named after Sherry’s grandmother.