Welcome to the forum! The reason for the disappearance was mentioned a few months back here
, but the good news is that you can still find the Mertz scores via archived forum pages on the Wayback Machine site here
Meanwhile please have a look at this
page for some useful information to get you started on the forum, including links to the rules and helpfiles. After your second message has been approved, you will have access to all members' scores and recordings plus the first 3 levels of the Delcamp score collections. After you have posted 20 messages, you can apply for the 020 group, which will give you access to the remaining levels. Just ask if you have any questions. I look forward to seeing you around!
Classical Guitar Forum.
"Experience is something you don't get until just after you need it." - Steven Wright