On the form also the second year for my band life, i was changed to another instrument. I totally blank at that time because don't know got this chance to make a changes to the instrument. So, i had been changed to trumpet which i already knew for some of the key such as do(---), re(0-0), mi(00-), fa(0--), so(---), la(000) and si/ti(-0-). That is key you need to press. Nice to know that and until now i know the knowledges.
Thanks a lot to my senior and junior whose help me and together with me to go the difficulties.