Hi,
Congrats on hitting that milestone .
As others have said, the site looks great and it's clear you've put a lot of time into it.
I can offer a few feedback points:
The pricing tiers could have better names, from a quick glance I wasn't sure which plan fits me. Maybe take a look at what are common traits for customers in each plan and see if you can come up with a one word persona for each plan that way.
The product tours after signup are really clear and crisp well done. I've found that getting users to Wow fast is key to drive conversions, and that tours aren't enough. They show me how to get to wow but don't bring me there.
A common pattern is to prepopulate the app with some data and lead the user to a likely wow event quickly. That's super hard, because you need to know what wow is, but it's gold when you crack it.
I've asked customers "What made you decide to give us money" and that can get some good insights towards what wow is.
I just visited the site for the second time, and my dashboard is empty because I haven't done anything. A real user will likely churn, because they don't know what to do. Nudge them hard towards the action that will bring them to wow.
I'm parroting patio11, but your pro plan is priced to low. Try raising prices on it (a lot) and see if anyone goes for it.
Anecdote: I set a pricing page to have $50, $180 and $1200. $50 sold the most, but one day someone self served themselves an annual $1200/month plan, which is 24 $50 customers. Point being, if someone wants to give you a lot of money, give them the chance to do so.
Last point, I just noticed the video under the the pricing section. My personal opinion is that it's weak for marketing purposes, it tells me how to use the app, but doesn't immediately show me what the app can do for me. The point of a video on a marketing page is to get me excited to try and then convert. Make me feel excited ...
On the other hand, it is a very good tutorial video, maybe put it on the dashboard of the app if the user hasn't uploaded any tracks yet.
Good luck!