The problem of this study was to obtain empirical evidence of the functional nature of the Audio-visual Identification Instruction (AVII) model for designing effective music instruction for young children. The method was to use materials prepared according to the model specifications in actual classroom conditions. The purpose of the study was to compare the achievement gain of second grade children of high, middle, or low musical aptitude levels, who were instructed by experienced music specialists, first year music specialists, student teacher music specialists, or experienced classroom teachers using AVII model materials, on three tasks in the area of pitch and three tasks in the area of timbre. Subject to the circumstances and limitations of this investigation, the results indicate that the AVII model is effective for instruction for musical naming and identification tasks for young children.