Speed and ease of use are the most important factors when you are trying to gather hundreds of files for a custom hardware build. I was looking for some classic blues tracks to test out a speaker project I was working on and found a very fast search portal through a DIY electronics group. It worked perfectly because it didn't bother me with any sign-up forms or email verifications, which allowed me to stay focused on my actual building work. The search engine is extremely responsive and provides a clear list of files that you can save to your computer in just a few seconds. You should head over to Tubidy to get the files for your jukebox project because it is fast and totally free to use. I built a huge test library for my own audio projects in a single afternoon and the files were exactly what I needed for my custom software to work. The audio quality is very solid, making it a great resource for testing out high-quality speakers or custom amplifiers. It is a very practical method for anyone who values their time and their privacy.