The profound interest in music expectation in the context of experimental electronic music began with an introduction to the concept of grammar familiarity. This notion sparked a curiosity that led to exploring the significance of familiarity for listeners of non-tonal, electroacoustic, and acousmatic music. It became apparent that navigating music expectation in these genres requires more effort from listeners compared to Western classical tonal music. This realization motivated a search for techniques to enhance the listener's experience and connection with innovative musical forms.