Abstract: A tool to measure, diagnose and retrain post-lingually deafened cochlear implant recipients to enjoy sound and particularly musical sound. The tool includes audio and visual stimulus presentation apparatus, selected and stored musical scores, subject response apparatus, and a means to access the cochlear implant. These act in conjunction with: a Sound Enjoyment Assessment Tool (SEAT); a Perceptual Discrimination Assessment Tool (PDAT) including: a) a pitch discrimination assessment (PA) tool, and b) a timbre discrimination assessment (TA) tool. A Music Perception Ability Tool (MPAT) and a Timbre Perception Ability Retraining Tool (TPART). These components are used together initially as a composite Diagnostic Tool. The diagnostic tool produces a set of diagnostic scores of the patient's enjoyment of music. SEAT produces a musical enjoyment score. PDAT produces a pitch and timbre discrimination ability score.

Abstract: The apparatus, system and method of the invention provides a tool to measure, diagnose and retrain the ability to enjoy sound and particularly musical sound for post-lingually deafened cochlear implant recipients. The invention consists of computer driven audio and visual stimulus presentation apparatus, selected and stored musical scores, subject response apparatus, and means to access the cochlear implant which act in conjunction with fundamental components, namely: (1) Firstly, a Sound Enjoyment Assessment Tool (SEAT), (2) Secondly, a Perceptual Discrimination Assessment Tool (PDAT) consisting of 2 parts, 1. a pitch discrimination assessment (PA) tool, and 2. a timbre discrimination assessment (TA) tool, (3) Thirdly, a Music Perception Ability Tool (MPAT) which functions both as an assessment and as a retraining tool, and (4) Fourthly, a Timbre Perception Ability Retraining Tool (TPART). The initial components SEAT, PDAT, and MPAT are used together principally as a composite Diagnostic Tool.