Uranus and Neptune are made primarily of hydrogen compounds, with smaller traces of hydrogen, helium, metal and rock. The most common hydrogen compounds are methane (CH4), ammonia (NH3), and water (H2O). The farther away a planet is from the Sun, the cooler its atmosphere will be.
Musical.ly is a popular app for creating 15-second music videos. How it works is kids select snippets of popular songs and record themselves singing, lip-syncing or dancing. Some kids skip the music and perform 15-second comedy skits.
1 Homophony is an important category of musical texture. 2  It comprises a melody and an accompaniment. 3  The accompaniment may consist of chords moving together with the melody, or a more elaborate pattern, possibly of broken chords or figurations.  The melody may be in the highest register or it may be lower in the texture.