This paper presents the development of an instructional unit that tested an instructional development model. The model was based on the Instructional Project Development and Management (IPDM) model designed by Castelle Gentry. A short student seminar was developed using the stages and techniques proposed by Gentry. The subject of the seminar was electronic music synthesizer programming. An evaluation of the seminar concludes that it is an efficient and complete model for developing instructional units.