text: Revered for their intellectual depth , technical command and artistic beauty , Bach 's works include the Brandenburg concertos , the Goldberg Variations , the Partitas , the Well-Tempered Clavier , the Mass in B Minor , the St Matthew Passion , the St John Passion , the Magnificat , The Musical Offering , The Art of Fugue , the English and French Suites , the Sonatas and Partitas for solo violin , the Cello Suites , more than 200 surviving cantatas , and a similar number of organ works , including the celebrated Toccata and Fugue in D minor and Passacaglia and Fugue in C minor .