The results and implications of Tyson's work on Mozart have had a profound impact on virtually every aspect of research on this composer. This book assembles his major articles, previously scattered through magazines, journals, and festschrifts, plus two unpublished pieces, into a treasure trove for musicologists and music lovers.

A comprehensive description of Beethoven's sketchbooks--bound books of music paper in which Beethoven made sketches for his compositions from about 1798--has been long felt by Beethoven scholars. Although almost all the sketchbooks have survived in one form or another, it became clear in the 1960s that they were in a state of disarray. A reconstruction of their original condition was essential to the proper study of their musical contents.