Hi Jen,
_frame_ notation _link_sorry for this - it is a glitch - let me explain.
Drumdojo has been built since 1999 using all manner of software and standards - the recent move to Joomla necessitated me re-doing every single page (there are hundreds) and redirecting every URL that is mentioned throughout the site (thousands) - a massive job that has taken months.
I am still finding the occasional _link_ that has been incorrectly redirected or there may be conflicting redirects - I'm currently tracking those down and fixing them.
Hopefully the _link_ above with get you there - I just typed notation in the search feature to find it - it's not ideal but is a work around until I fix that URL (today).
Hopefully this won't spoil your use and enjoyment of the site too much - thanks a million for joining our community.
Paul