Elementary school students need to be exposed to song's melodies that match their vocal range. When the teacher makes new songs, the melody needs to be adjusted to their students' abilities. This study aims at producing songs for elementary school students by employing Four-D Model (Defining, Designing, Developing, and Disseminating). This study was conducted through testing to 94 elementary students in West Java province chosen by purposive sampling. The research findings showed that: (1) students encountered some difficulties in singing a song in # G 3 to D 5 note range, and all students were more capable of singing in # A 3 to C 5 note range; and (2) students encountered some difficulties in singing the song's melody in the 700 cent interval, both in decreasing and increasing melodic contours, and they also encountered some difficulties in singing the song's melody from eighth note (1/4) to quarter note (1/8). The implication of this study is that there is an urgency to compose a simple song for elementary students aiming at the success of music learning, or on the contrary; the children's musical competence should be developed in their early age to reach a more complex note range and interval.