Abstract: A compatibility method for determining the likelihood that two individuals will be compatible wherein the method of the present invention implements a testing protocol that utilizes music. The present invention operably integrates with a music library of each user prior to implementing a testing protocol. The testing protocol incorporates a plurality of questions wherein the questions are provided to a user with an answer set for a user to select an answer therefrom. Subsequent selecting an answer, the software application of the present invention will cross-reference keywords in the answer with keywords in the lyrics of the songs within the music library of the user. The software application will then play an alternate song based on the keyword correlation of the aforementioned wherein the song initiates play prior to presenting the user with an additional question. The protocol continues with the software application determining an emotional quotient value.