mkdir sounds
cd sounds

mkdir grand
mkdir salamander
mkdir soft
mkdir electric

cd salamander
for $x in 21..108 {wget $"https://pianoverse.net/sounds/salamander/($x).mp3"}
cd grand
for $x in 21..108 {wget $"https://pianoverse.net/sounds/grand/($x).mp3"}
cd soft
for $x in 21..108 {wget $"https://pianoverse.net/sounds/soft/($x).mp3"}
cd electric
for $x in 21..108 {wget $"https://pianoverse.net/sounds/electric/($x).mp3"}