I have a 13-year old twin boys. They both excel in school. They graduated Top 1 and 2 in elementary. They're now studying in a public Science High School as scholars. They also love music very much. They can easily learn to play songs using tutorial lessons in the internet. They both play bandurria and octavina. They would like to learn and use different musical intruments like guitar and violin. Please extend help in any amount to make their wishes come true. Appreciate it a lot.