This work investigates the intersection of Wolfgang Amadeus Mozart's personal character and his creative output to provide a comprehensive portrait of the composer. Alfred Einstein, a renowned musicologist, utilizes a vast array of primary sources and historical correspondence to examine the psychological and social factors that influenced Mozart's development. The book argues that Mozart's music cannot be fully understood without considering the specific biographical context of his family life, his professional associations, and his complex personal relationships. By synthesizing historical data with critical musical analysis, Einstein constructs a framework that links the man to the music.

Experts and music historians frequently cite this volume as a foundational text in Mozart scholarship due to its depth and scholarly rigor. Readers often note the academic density of the prose, which remains a standard reference for those seeking a thorough understanding of the composer's life and work.