sounds like Lounge Music, idk that style, but definitely something played in a Bar or in several Chillout areas. So Chillout/Lounge - something in that direction 
I would try to find some good Bars or smaller Clubs around there you are and give them a Tape - ask if they would play your music. Here in Germany i know some Artists who started like this. Also try to perform live and record that on video for YT Upload. You can then use this as reference work if you wanna build up and audience. Quite hard to tell where to promote your music - i struggle on that as well but i guess that looking for a forum or blog dedicated to Lounge/Chillout Music could help your Videos get an initial “kick”.
If you use soundcloud, post your tracks to groups that have similar or equal musical styles. this helps alot. however: bad thing about that is that you have to repeat this process several times a day if you wanna stay up in that groups track list.
its all about the combination i think. i still try to find my way; YT and SC is working good, but obviously you cannot expect to catch attention in a short time.
i would - however - NOT post your music to Services offering you cheap prices for bringing your music to several platforms !!! dont do this! google their names and read through user experiences and you will notice that most of them got ripped of by those platforms. they barely saw money or their tracks havent reached spotify, itunes - whatever - at all. but they still had to pay the price - things like that. and others even found their tracks “warez’ed” on the internet - tons of illegal copies while they were still not published on spotifiy and so on and so forth - but rather on unknown sites no one really buys a track from. in short: DONT DO IT!
take your time and start slow. YT and SC work on a long term - combined with style specific forums and blogs. and dont forget to ask in some Bars and Clubs around and use your YT videos for practice to do live jams. Although you wont reach a massive audience that way you will reach an audience that is really attracted by what you are doing. and that matters most, doesnt it?!