“…While Rhythmanalysis has itself germinated a fascinating array of case studies, ranging from the 'rhythms' of social institutions such as museums (Prior, 2011), time-lapse photography (Simpson, 2012), soundwalking (Hall et al, 2008), post-conflict pedagogy (Christie, 2013), to mobility studies generally (DeLyser and Sui, 2012), 'rhythm' unintentionally becomes an interchangeable conceptual category with 'tempo' and 'speed' or, generally, 'life' and 'vitality'. In resonance with Michael E. Gardiner's (2012) observation that Lefebvre holds a tenuous and non-systematic commitment to the concepts he introduces, Rhythmanalysis's mechanics of rhythms (i.e. tempo, speed, duration) are equivocated, non-specific, and ambivalent.…”