One aspect, which in our opinion has been neglected in studying the Mozart effect, is the interaction between different learning stages and music. Changes in the synapses resulting from the simultaneous (or near-simultaneous) activation of the neurons that form them is generally thought to be the basis of all changes in behavior due to experiences, including those that involve learning. Hebb’s (1949) notion of the cell assembly was based on evidence suggesting that memory is a time-dependent process, thus it can be influenced in different stages.