What do the following pairs have in common? The answer to the last clue is a hint. Can you guess the puzzle title?

1. Trombones and Apostles
2. Commandments and an old record
3. Contiguous U.S. states and Ali Baba
4. Jack Benny and the California Gold Rush
5. Famous Catch and a famous Route
6. Keys on a piano and actor Mostel
7. July and August

Answers: 
Answer to Clue 7: Summer
Answers to Clues 1-6:
The numbers associated with the two items in each clue 'sum' to 88:

1. 76 Trombones + 12 Apostles
2. 10 Commandments + 78 rpm
3. 48 contiguous states + Ali Baba and the 40 thieves
4. 39 - Jack Benny's age + CA Gold Rush of 1849
5. Catch 22 + Route 66
6. 88 keys on a piano + 0 Mostel 

Puzzle title: 'SUMMER' OF '88
by Merl Reagle