French composer, Alain Weber (b. 1930) writes Progressive Lessons in Theory and Rhythm with much experience and expertise. This second volume, which considers in detail quavers, semiquavers, triplets and the 6/8 time signature, isessential to accompany basic theory progression. Following graduation from the Paris Conservatoire, Weber spent time in Italy to develop his own musical style. However, he soon returned to the institution as a professor of theoryand counterpoint. He is a significant contributor to important teaching materials and Progressive Lessons in Theory and Rhythm is no exception.