To take advantage of the Prime Day music deals on Amazon itself, the answer is yes. If you’ve never been a Prime member before, Amazon often offers free trials (right now you can sign up for a 30-day free trial), so you could be tactical and sign up just before the event, then cancel your subscription once you’ve bagged a bargain.
If you’re a regular Amazon shopper you might want to keep hold of that subscription though. Prime members get faster delivery, exclusive deals, access to Prime Music, Prime Video and more.
If you've already had a free trial, at the time of writing, a monthly Amazon Prime subscription costs $14.99/£7.99 (which you can cancel at any time) and a yearly option is $139/£79.
There's also a student plan that currently costs $7.49/£3.99 per month or $69/£39 per year.