Ask HN: Info about a past link

A link was shared here about a year back or so. about a website which had some small-lengthed tunes which one could mix and play. They had an awesome shuffle mode. On adding a tune a sketched cowboy would get added to the screen, who would seem to be playing the tune. (options were like whistling, reggae etc). Can someone please provide the link. They had released a second version of their website.

PS: I know this was idiotic, but the tunes are stuck in my head and I am not able to remember the website.