Hi, Nice to meet you.
For me, I just turn on nursery songs, lullabies, and any music which is soothing for my baby. During my pregnancy, I also bought Lovely Baby CD by Raymond Lap and played every night..
Now, also turning on the music at night if my baby is so alert and doesn't want to sleep. Once the music is on, she will quietly sleep later on.
I heard the it is good for kids to learn one musical instrument and by doing so could make them smarter (especially good in the maths). Not sure, if it is true or not.
Btw, how was the event you mentioned? Did you go and found anything special in the event?