There are many monks in that monastery that are blessed to having singing voices and talent with instruments. I've never played an instrument or have ever been able to keep a tune while singing. Music in the monastery, especially chanting, is meant to lift your heart, your soul, your being up to God. If you are ever able to visit a monastery and hear  Gregorian chant in person I highly recommend it. You can find monks chanting online but it doesn't give you the same effect as it does in person. If chanting moves us so much then how about the music we listen to on a daily basis. An old wise monk told me that the best music to listen to if you want to be at peace is classical music. Different types of music move us and our emotions, find the type of music that will help you find your desired emotion. https://MonkMindset.com