@whale-av Hi David,
I am trying to add a speed changer on the loop. I've spent a whole day to understand how to do it but haven't understood yet. Can you maybe help me with it? I found this http://write.flossmanuals.net/pure-data/arrays-graphs-tables/
using this http://write.flossmanuals.net/pure-data/arrays-graphs-tables/static/PureData-DataFlow-array_tabread4-en.png
Sur