Here are the statistics up to reply 73 inclusive:

A) running log from reply 54 to reply 73

Mr. Opilec 100 for reply 54 (correct answer to puzzle 5 after 7 hours 27 minutes)
Mr. Macrae 29 bonus after reply 54
Mr. Grew 100 for reply 56 (new puzzle 8)
Mr. Dish 100 for reply 57 (correct answer to puzzle 8 after 2 hours 22 minutes)
Mr. Grew 9 bonus after reply 57
Mr. Baziron 100 for reply 59 (new puzzle 9)
Mr. Dish 100 for reply 62 (new puzzle 10)
Mr. Opilec 100 for reply 63 (correct answer to puzzle 9 after 23 hours 10 minutes)
Mr. Baziron 92 bonus after reply 63
Mr. Inquisitor 100 after reply 65 (new puzzle 11)
Mr. Baziron 100 after reply 66 (new puzzle 12)
Mr. Barrett -75 after reply 68 (off topic)
Mr. Grew -75 after reply 69 (incorrect answer)
Mr. Dough -75 after reply 71 (incorrect answer)
Mr. Autoharp 100 after reply 72 (correct answer to puzzle 10 after 9 hours 23 minutes)
Mr. Dish 37 bonus after reply 72

B) Current Puzzle Status

Puzzle 1: set by Mr. Grew here and here - as yet unsolved
Puzzle 2: set by Mr. Dish here - as yet unsolved
  Puzzle 3: set by Mr. Grew, solved by Mr. Sudden [Mozart String Quartet in D minor]
  Puzzle 4: set by Mr. Sudden, solved by Mr. Inquisitor [Debussy La mer]
  Puzzle 5: set by Mr. Macrae, solved by Mr. Opilec [Janacek Dunaj Symphony]
  Puzzle 6: void
Puzzle 7: set by Mr. Sudden here - as yet unsolved
  Puzzle 8: set by Mr. Grew, solved by Mr. Dish [Webern String Trio]
  Puzzle 9: set by Mr. Baziron, solved by Mr. Opilec [Bach Cantata 198]
  Puzzle 10: set by Mr. Dish, solved by Mr. Autoharp [Malipiero Violin Concerto]
Puzzle 11: set by Mr. Inquisitor here - as yet unsolved
Puzzle 12: set by Mr. Baziron here - as yet unsolved

C) Great Computerized Member Rating Point Table

Mr. Baziron: 292
Mr. Dish: 262
Mr. Sudden: 247
Mr. Inquisitor: 220
Mr. Opilec: 200
Mr. Grew: 134
Mr. Autoharp: 100
Mr. W: -75
Mr. Thompson: -75
Mr. H: -75
Mr. Johnson: -75
Mr. Macrae: -171
Mr. Martle: -225
Mr. Dough: -225
Madame Antheil: -225
Mr. D: -225
Mr. Barrett: -300

Congratulations Mr. Baziron for a fine plucky effort; keep up the good work! And Mr. Macrae really deserves to be higher in the table; it was a few erroneous guesses which brought him down. Finally we know Mr. Barrett can do better - we urge him to pull up his socks!

I'm quite happy here in the abyss, Mr Grew, thank you. I have been unable to download Mr Baz's last snippet so I shall guess that it's from the Musikalisch-Türckischer Eulen-Spiegel by Daniel Speer (1636-1707).

Could it be the completely un-Handelian Scio enim quod redemptor meus vivit by Adam Gumpelzhaimer (1559-1625) of Trostberg?

Well done autoharp - spot on!

Baz 

P.S. Richard - did you ever hear the story about the monkey and the typewriter?

Here is PUZZLE 14

No 2.  Allan Pettersson*  -  Fuga in E for Oboe, Clarinet and Bassoon.

(The sprawling American symphonist and favourite pupil of Nadia Boulanger. )

Neck on the block time, IGI - the telephonic association of your clue to 11 suggests either Menotti or Poulenc, and the near-quotation of the wedding march might just be from the latter's contribution to the the collaborative ballet Les Mariés de la Tour Eiffel.

Puzzle 15 - Balakirev: Overture on Three Russian Themes