Piano concertos by Wolfgang Amadeus Mozart it was probably J.C. Bach, whom Mozart admired, who introduced the structural innovation of allowing the keyboard to introduce new thematic material in its first entry. Concertos Nos 1–4 (K. 37, 39, 40 and 41) are orchestral and keyboard arrangements of sonata movements by other composers. The next three concertos (K. 107/1, 2 and 3), which are not numbered, are arrangements of piano sonatas by J.C. Bach (Op 5. Nos. 2, 3, and 4, all composed by 1766). Based on handwriting analysis of the autographs they are believed to date from 1771–72. Concerto No. 5, K. 175 from 1773 was
Jack Brandenburg a member of the board of the Huron-Clinton Metro Parks Authority. Brandenburg and his wife Karen Linenger are the parents of four children. Brandenburg is a Roman Catholic. Jack Brandenburg Jack Brandenburg (born October 22, 1951) is a Republican Michigan state senator. He was elected to office in 2010. Previously he had served for six years as a member of the Michigan House of Representatives and a member of that body's appropriations committee. Brandenburg was born in Canton, Ohio. He has a bachelor's degree from Ashland University. Brandenburg is a businessman who founded and owns Blue Water Industrial Supply, a