What was the first commercially available soundtrack album?

What was the first commercially available soundtrack album? Long before the album era hit the rock and pop world, the LP record was the main medium of the movie soundtrack. Once The Jazz Singer heralded the arrival of the talkies and synchronised sound in 1927, the official movie soundtrack would become big business. Two years later, Easy Rider would present itself as more of a mixtape than a soundtrack, compiling hits from Steppenwolf, The Byrds, and Jimi Hendrix that would establish later record-breaking movie pop tie-ins. So too was its Oscar winning score score celebrated, Frank Churchill and Larry Morey’s ‘Heigh-Ho’, ‘Someday My Prince Will Come’, and ‘Whistle While You Work’ entering the Disney songbook canon and embedded into wider popular culture.