Makena,
you have asked so many questions and all of them are related to external factors (music, channel, posture , time etc) about meditation. Nothing wrong about it but believe me all these things are of no use in meditation.
Dont take help of external thing for meditation because meditation is something to do with your surrender in the environment you are already in. Just be aware of everything you are doing and everything that is happening around you and nothing else is required.
Otherwise whatever you will be doing, it will appear to you like a meditation but it won’t be a meditation.
Meditation is a technique for sure but it does not need any tool to achieve. Spend some more time in understanding of what meditation is and it will help you before you go into it. Tools or device cannot help you in meditation.
Meditation happens when mind moves out of picture. Mind at peace or silence is not meditation but it is relaxation.