... or create our own so it won't be blocked in some countries on youtube.
I think, new music or not, gamblers will not care. Just show your presentation in a professional way. The current source link about some list you have there is already a good reference.
I'm sure gamblers won't even think the lyrics or even hear it, but a soundtrack might help right? I mean it affects the mind of a gambler subconciously without them knowing it. Music that has a good good rhythmic might hype the gamblers, video makes a lot of sense when it has a music in it, isn't it?
Honestly, music gives most of us the vibe most of the time.
Since you have mentioned, "create our own", I think that would the best idea. Meaning you are capable to do that.
Youtube is strict even you will put a "No copyright infringement intended" or give credits on the caption. If you think you can deal with that, then good.
[/quote] Nah, don't even try when you know nothing about it, it will just ruin everything trust me. Just pick a good music probably in youtube, contact the channel and let them know that you are going to use their music to avoid getting taken down due to copyright issues and give link credits, that way you'll be fine.