The first two videos have music made with crystal bowls, which are said to help harmonize the Chakras and the rest of our energy system. I enjoy them as background music for creative work as well as meditation.
The next piece by Jonathan Goldman is one of my favorites. Jonathan Goldman creates music with deliberate intention to raise the frequency of the listener and facilitate awakening of consciousness.
The Eternal Om is a classic and this one is done in such a way that it helps you focus your attention inwardly instead of distracting you with the sound.
Enjoy the music and enjoy your day!