Onstage

Hi Guys!

I'm working on a logo for the startup Onstage.
This is all the concepts that have been proposed to the client to choose from.

Onstage is a platform that aims to amplify professional musicians digital presence by providing set of online tools and services.
Logo plan to use as the logo for the site and logo for the mobile application.

Description of the logo:

As a (digital) tool, it logo has to be memorizable and easy to read and scan. It’s style has to be slightly decorative, I’d say even vintage or retro, but without corresponding to a certain period of time.

I would like to hear your opinion. Which option reflects all the characteristics or just looks the most attractive?

I will be glad to any opinion!