“…In fact, MP has been reduced to: analytical pre-study of the score or listening to recording of the piece followed by analytical study (Rubin-Rabson, 1937); auditory plus kinesthetic imagery (Ross, 1985;Cahn 2007); imagery of sounds while pressing silent keys or imagery of the feeling of the movements while actually hearing the sounds or auditory plus kinesthetic imagery in the absence of any feedback (Highben & Palmer, 2004); visual plus auditory plus kinesthetic imagery, with or without auditory model (Lim & Lippman, 1991;Theiler & Lippman, 1995). Second, subjects were often asked to practice in unnatural situations: depending on the study, subjects had to avoid MP strategies other than the one prescribed (Highben & Palmer, 2004); they had to avoid any overt movement of the hand/fingers (Cahn, 2007;Ross, 1985) and avoid humming (Lim & Lippman, 1991); when included, audio-recorded version of the piece to be practiced played at fixed time intervals (Theiler & Lippman, 1995) or even continuously played for the entire practice time (Lim & Lippman, 1991;Highben & Palmer, 2004); subjects had very limited time windows to implement their MP (Cahn, 2007); participants had to practice the piece a fixed amount of times, without stopping or correcting mistakes (Highben & Palmer, 2004). The rationale of experimental control that lies behind all these constraints is reasonable and agreeable, and these controlled studies have proved valuable and converging results.…”