Have you tried looking on the Singlecell websight under presets You have to log in to be able to download them. When I first tried to make a profile, it wouldnt send me the confirmation email needed to authenticate my profile but I figured it out by asking the websight to reset my password and an email finally was sent so I could log in.
you will actually need two cables. i forget the names of all the USB types, but...
the midi controller has the big chunky USB female socket in the back, and you need a cable that goes from that to the "regular" USB, like this one:
and then you need the OTG adapter to go from that cable to your phone.
note that this isnt a regular USB-USB adapter. it must say "OTG" which stands for "on the go". normally, when you plug something into your phone, with a regular USB-USB adapter, for example, a computer mouse...it would not work, because a mouse needs some power from whatever its plugged into. normal cables wont do that, OTG cables will. as a side note, something that is pretty cool is if you do plug in a mouse with an OTG cable, most android installs will recognize it and give you a mouse cursor, and you can use it on your phone screen like a regular mouse.
you dont have to order these from Amazon, you can probably get them from Radio Shack (if there still are any near you) or a similar store. maybe best buy or something.
You can get a very good DAW for free:
https://www.bandlab.com/products/cakewalk
Search sites like Plugin Boutique for free synths (and they also often have extremely good deals on paid ones as well).
Then you have an option for if/when Caustic stops working on your PC.
Caustic is also available for Apple and Android mobile devices as well. It's not free on those platform, but the cost is very low (£5.99 in the UK on Android).
I found this app to work well. It's a pretty quick starting app for capturing live moment sound. I use the caustic wav editor to pull the files from the apps folder and crop/tweak before banking
https://play.google.com/store/apps/details?id=com.coffeebeanventures.easyvoicerecorder
I use these often, and the stock Rhodes sample that comes with PCMsynth. The trick I found is to tweak the sounds myself. Adding reverbs and adjusting the knobs on the sample editor can do wonders. Also I found that adding an additional sample to blend the original, for example: copying the melody from the Rhodes track and adding a Modular sample with the same melody but turning the volume down so that it compliments the Rhodes rather than overpowering it, can do wonders too. I love this stuff. Enjoy!
https://play.google.com/store/apps/details?id=com.soundblend.electricpianos
There is a decent piano add-on by audiovapor on the app store. There is a free version with 5 pre-sets and you can buy the full with 10 stock sounds. I've only tried the free and I like a couple of the samples.
https://play.google.com/store/apps/details?id=com.audiovapor.pianofree&hl=en