for each user of the site want to know: (basically whatever the default data such tools automagically collect, but somehting like the following)
browser (and version)
OS
time the stay on site in visit (does it differ depending on which assignment they're on?)
like if we measure their time to complete an assigned activity by proxy as the time that activity's tab is open, how long does it take someone to complete perform melody? is it much shorter or longer than other activities? does it go up or down as they continue in the semester to do the same type of activity for other pieces?
for each user of the site want to know: (basically whatever the default data such tools automagically collect, but somehting like the following)