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
Jim Brandenburg His work has been included in many other magazines, such as "Life", "Newsweek", "The Smithsonian", and "GEO" and has been featured on all the major television and radio networks including ABC's Prime Time Live and CBS News Sunday Morning and Dateline NBC as well as National Public Radio's All Things Considered. Brandenburg was commissioned by the United States Postal Service to create a set of wildlife stamps. They were released on May 14, 1981. In 1980, Brandenburg learned of a population of wolves on Ellesmere Island who had not yet had the fear of man instilled into them. Brandenburg therefore