Let’s look at what is actually there, what isn’t, and how to use it legally.
The availability of Shostakovich’s scores on IMSLP is heavily dependent on where you are located.
This will take you to a categorized list of his works sorted by opus number (Op. 1 through Op. 147), followed by works without opus numbers.
Even if you can’t download the full score of Symphony No. 5 in New York, the IMSLP page is still incredibly useful:
When you navigate to a specific work (e.g., Waltz No. 2 ), you will typically find:
When browsing Shostakovich's output, several "landmark" compositions represent his unique style, characterized by sharp contrasts and the "grotesque":