What I Have Learned Fill in the Blanks: Write a word or phrase that will describe the ideas/concepts you have successfully learned from the lesson. Musical instruments vary in purpose and design. It is classified according to its source of variations such as 1 3 1 Idiophones are also termed as self-sounders, chordophones as string ers while membranophones are ce Aerophones as ectrophones as electronic circuits produce sounds. a is a traditional Philippine string ensemble. It was brought to the Philippines by the The rondalla instruments are made from 9 and is played using um. It is composed of the following instruments: guitar, double bass, laud, 10 and octavina. Elwayan popularly known as the Singing Bamboo of the Philippines plays music using non 2 instruments. The musical instruments vary in shapes and sizes and are ung, bumbong, 12 14 15 16 17 -317​