The Seeburg discs were 16rpm 9" dia discs with 2" center holes and .5 mil groove.
Each library of different music styles consisted of 1000 selections on 28 discs. Each quarter 7 of the discs were up dated. Over a years time all 28 discs were replaced with another 1000 selection library.
I have done an extensive study into Seeburg music and its a story into itself.
--- On Sun, 10/4/09, David Breneman <[log in to unmask]> wrote:
> From: David Breneman <[log in to unmask]>
> Subject: Re: [ARSCLIST] LP Jukeboxes (Was:Living Presence promo copies)
> To: [log in to unmask]
> Date: Sunday, October 4, 2009, 7:22 AM
> --- On Sun, 10/4/09, George
> Brock-Nannestad <[log in to unmask]>
> > Outer diameter 8 inches, hole 2 inches.
> Yes, that's right. I said 10" but that was of course
> (faulty) memory. The sets I have are Christmas sets.
> About one in three songs are Christmas music.
> was very adamant about rotating the records. I'm
> they had research that showed that playing the same
> songs in the same sequence month after month would slowly
> drive the location's employees insane. :-)