Flutes have cylindrical holes. They are usually made of metal, often silver or nickel silver obviously there are also other materials such as gold and platinum used in their construction. Adding the keys into the flute (and changing them into the flute) allowed the player to create a wider range of notes and play more complex pieces much more simply compared to older simple flutes.
Music in San Diego
California's second-largest city, San Diego, has been home to a vibrant and diverse folk music scene for decades. Countless clubs, bars, theaters, cafes, and venues offer many opportunities to watch a great live show. Blink, Jason Marz, Switchfoot, and Daftons are some of the most important music scholars who have grown up in this city. The KAABOO Del Mar Festival, the Adams Street Fair, the Carlsbad Music Festival, and the CRSSD Festival are four of the major music festivals held in the city. The Capley Symphony Hall is one of the most interesting architectural sites in San Diego, making it a visual as well as a musical attraction that hosts many concerts and celebrations each year.