[78-L] Liner notes

[Kristjan Saag]

Thanks, Ted, David & Mike for valuable information about early liner 
notes in albums.
 From the examples given I conclude that liner notes were still 
exceptions in the early 78 rpm era. Could the same be said for the 
1940's? Or did information about songs, artists, composers etc. become 
standard any time before the LP era?
I'm also curious about the number of albums released each year, compared 
to singles. Capitol, for instance, released about 150 albums during the 
May 1945-mid 1949 period (before the LP album) and about 750 singles 
during the same period, which makes the album/single ratio about 1/5. 
What about other major companies and their popular music series? Anyone 
for a guess?
Kristjan