A composer with this surname wrote a part for (15[1])shotgun in his "Hunting" symphony. The heavily dotted melody [read slowly:] E, E - short E - E, C - short A - A - G sharp - long G sharp begins a piano sonata that a composer with this surname wrote after the death of his (15[1])mother. While a composer with this surname was staying in Paris, a (15[1])father-daughter pair commissioned his concerto for flute and (15[1]-5[1])harp. A composer with (15[1])this surname moved away (15[1])from his (15[1])family after the premiere of his opera (10[4])(*) Idomeneo. Before a (10[1]-5[1])composer with this surname (10[1])forced his daughter to stop playing concerts at the age of (10[1])18, she was the (10[1])dedicatee of her brother's first (-5[1])piece by Köchel number. A composer with this surname took his daughter (10[1])Nannerl and his prodigious (10[1])young (10[2])son on tours of Europe as a pianist. For 10 points, give this surname of the composer of Eine Kleine Nachtmusik. (10[3])■END■