[78-L] 10" vs. 12" LPs

[Cary Ginell]

Can anyone briefly explain the history of the first decade of the long-playing record? These are questions I need to have answered.

 

1) Which came first: 10" or 12" LPs? 

 

2) In jazz, why were 10" LPs initially preferred over 12" LPs?

 

3) What was the first label to issue a jazz LP and what was the album? (I'm not including previous experimental or failed attempts, such as the early '30s RCA Victor "Program Transcriptions). 

 

4) It is my understanding that production of 10" LPs lasted until 1955 or 1956, if you don't count labels like Folkways, which continued them into the '60s. I'm speaking more of the prevailing release schedule of popular and classical LPs. 

 

5) Why did the 45 rpm format fail with regard to jazz in the 1950s?

 

6) Finally - was the introduction of long-playing records a boon for bebop, live concerts, and other longer forms of jazz? And did it similarly spell the death knell for other forms of jazz that did not need the longer format (swing, Dixieland).

 

Cary Ginell

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