musical groups: commander cody & his _____?

Questions

Most present day composers would consider 4 or 5 Symphonies to be a good Symphonic output for a lifetime. Name the composer who wrote 102 Symphonies. ?

Who was Mozart referring to when he said "He alone has the secret of making me smile and touching me to the bottom of my soul" ?

The Symphony form owes its development to: ?

The Symphony form usually consists of: ?

The second movement of a Symphony is usually: ?