"work" vs. "piece" when talking about songs

[shiqangpan]

According to Cambridge Dictionary, "work" means

something created as a result of effort, especially a painting, book, or piece of music

and "piece" means

something that has been created by an artist, musician, or writer

What's the difference between them when talking about songs?

For example, which one of the following is more natural?

"Shake It Off" is one of the most popular musical works recorded by Taylor Swift.

or

"Shake It Off" is one of the most popular musical pieces recorded by Taylor Swift.

[Joe]

According to Cambridge Dictionary, "work" means

something created as a result of effort, especially a painting, book, or piece of music

and "piece" means

something that has been created by an artist, musician, or writer

What's the difference between them when talking about songs?

For example, which one of the following is more natural?

"Shake It Off" is one of the most popular musical works recorded by Taylor Swift.

or

"Shake It Off" is one of the most popular musical pieces recorded by Taylor Swift.

Not much difference to be honest, except a "work" might be considered more weighty.