I repackaged dataset with zstd and uploaded it to academictorrents.com.

http://academictorrents.com/details/dba20c45d4d6fa6453a4e99d2f8a4817893cfb94

Also it is temporarily availible as a direct link here

http://fma.mine.toys/fma/checksums
http://fma.mine.toys/fma/fma_metadata.tar.zst
http://fma.mine.toys/fma/fma_small.tar.zst
http://fma.mine.toys/fma/fma_medium.tar.zst
http://fma.mine.toys/fma/fma_large.tar.zst
http://fma.mine.toys/fma/fma_full.tar.zst

Zstd is way faster than Zip to unpack. If you don't have "tar" with zstd support you can install if from conda.
conda install tar zstd
How to unpack
tar -xaf fma_small.tar.zst
How to pack
tar -caf fma_small.tar.zst fma_small/
Alternatively you can install binary and use zstd as an external command for tar.

sudo apt install zstd
tar -I zstd -xvf fma_small.tar.zst
tar -I zstd -cf fma_small.tar.zst fma_small/

If that is desirable and appropriate then I can make a PR with changes to README.