How long would it take to play every Frank Sinatra song?

It is difficult to determine an exact amount of time to play every Frank Sinatra song, as the number of songs he recorded varies depending on the source. Sinatra recorded over 1,400 songs in his career, which would equate to hundreds of hours of music. Assuming an average song length of 3 minutes, it would take well over 70 hours to listen to all of his songs back-to-back.