How do you get the musical knowledge skill on Mabinogi

Getting started with Music Theory can be expensive, or fairly
inexpensive. The first step is to start at the beginning, right? Go to
Dunbarton and visit Aeira. Her store sells the book "Music Theory" for a
whopping 80,000 gold. But that's chump change for you, right handsome? Huh?
NO? Well, then... there is a way to get Aeira to GIVE you the book, but it
still costs a little bit of gold.

What you'll need to do get Aeira to like you. You can do a whole bunch
of Part-Time Jobs, but giving gifts is the fastest way. First, be friendly to
her and ask her about Private Story, Nearby Rumors, and Skills. Then, go to
her father, Walter, the owner of the General Store in Dunbarton, and purchase
about 6 Anthology gift items and 2 Cubic Puzzle gift items. Return to Aeira
and left-click and drag the item over to Aeira. After each item you give her,
talk to her about Private Story, Nearby Rumors, and Skills. If done
correctly, she should give you the book "Music Theory" for free (or
considering the cost of the gifts, about 1,000 to 2,000 gold).

Upon reading the "Music Theory" book, you'll gain knowledge and
Practice Rank in Music Theory. Spend 1 AP, and you will have Music Theory
Rank F.
credit for this answer: masonthekiller on gamefaqs.com