Composer and organist, Joseph Bonnet (1884-1944) is considered one of the most major French pipe organ players. It is no surprise, therefore, that his Concert Variations for Organ are very well informed. Following his studies at the Paris Conservatoire, Bonnet took over as concert organist at the institution. Concert Variations for Organ was compiled in 1906, soon after his graduation. The work begins with a helpful index of the organ registrations and performance directions. Concert Variations begins with a virtuosic, cadenza-like theme in E minor. Following this, four variations are heard, all containing contrast in organ sound, tonality and exploited melody and rhythm. For all advanced, aspiring organists, Bonnet's Concert Variations is an essential addition to the repertoire.