The World's Best, Fully Featured, Completely Unlimited Free Daw For All Music Creators.
System requirements :
Tested on Ubuntu 16.04
Intel Core i5 2GHz Processor
4GB RAM (8GB Recommended)
To download your free copy of Tracktion, you have to register : https://marketplace.tracktion.com/shop/free-daw
This app is not for a barebone Puppy, but Bionicdog could be up to the task if it can install needed dependencies.
I myself did not register, nor used it, so i can not tell if it works on a Dog. But i am not a music creator. Just a music lover.
Here is the Home page of Tracktion : https://marketplace.tracktion.com/shop/
Further reading :
How to install the Tracktion audio workstation on Linux
https://www.addictivetips.com/?p=302886