Sheet music was mass produced from the late 19th century well into the 20th century, but with the advent of radio and television, the piano was no longer the key feature in a room and the popularity of sheet music fizzled out in the 1940s.

Today, sheet music from the past is highly collectible, some valued in the hundreds of dollars if not over a thousand. Cover art is generally the most important consideration in investing in sheet music. They make perfect artwork framed and hung on a wall.

The most valuable pieces of sheet music are those featuring stars of the silver screen, historical photos or events and ones signed by famous songwriters or film stars.

A hand-signed Frank Sinatra sheet was recently valued at $1500.

Values for these rare pieces can be quite high, but they must be in very good condition. Examples of the most popular or easily found vintage sheet music may only be worth a few dollars.

Sheet music by Sidney Bechet seems to be valuable now. Ghost of the Blues, 1924 recently sold on eBay for $470 CAD. And Who'll Chop Your Suey When I'm Gone sold for $315.

Scott Joplin and George Gershwin sheet music have always been sought after with sold prices from $200 and higher.

Sheet music featuring black-face musicals as well as those with Al Jolson usually fetch $100 or more. Hand-signed Al Jolson pieces can sell for $200 or more.

Vintage sheet music can be found everywhere – antique shops, auctions, online, at thrift shops, yard sales and flea markets.

If buying only for the artwork, compare the price to the condition.

If buying as an investment or to enhance a collection, do a little research to ensure a fair deal.