Chromaprint

https://tango.info/chromaprint

chromabase64 = base64 encoding of the chromaprint
chromamd5 = md5(chromabase64)

wc -l tinp.sn.tn.chromabase64.andmore.csv

cut -d "," -f 1-4 tinp.sn.tn.chromabase64.andmore.csv | sed -e 's/,/-/1' | sed -e 's/,/-/1' > tint-.chromabase64.csv
cut -d "," -f 1-4 tinp.sn.tn.chromamd5.andmore.csv | sed -e 's/,/-/1' | sed -e 's/,/-/1' > tint-.chromamd5.csv
join -t "," tint-.chromabase64.csv tint-.chromamd5.csv > tint-.chromamd5.chromabase64.csv
join -t "," -o 1.2,2.2 tint-.chromabase64.csv tint-.chromamd5.csv | sort -t "," > chromamd5.chromabase64.csv

sort -t "," -k1,1 -k2,2n -k3,3n //col 2+3 num sorted