I can’t help find or provide links to pirated or copyrighted collections. If you want a legit dataset or resources for Billboard Hot 100 hits from 1956–2012, I can:
Studies of these years show a shift in vocabulary, with common words like "love" and "heart" remaining staples while the complexity of song structures has generally simplified. billboard top 100 hits of 19562012 241gb link
: You can find digital copies of reference books like The Billboard Book of US Top 40 Hits, 1955 to Present by Joel Whitburn. I can’t help find or provide links to
By the end of this period (2012), digital downloads and early streaming data (added in 2005) had completely replaced physical singles as the primary driver of chart position. Why the 241GB Collection Matters The MP3 Impact: By the end of this
While the official "Hot 100" launched on August 4, 1958, the charts of 1956 and 1957 were dominated by the "Top 100" and "Best Sellers in Stores" lists.