newly released music; new release
Refers to a newly released recording, such as a CD, album, or digital release. Common in music industry and media contexts.
His new release will go on sale next month.
new sheet music; new score
Refers to newly published sheet music or a musical score. Less common than the recorded music sense in everyday usage.
I bought new sheet music for piano and am practicing it.
I checked this week's new release chart.