Update to Green Hill Zone V4 version.
Major overhaul, note fixes, better instruments, volume enhancements.

[Original](https://www.youtube.com/watch?v=G-i8HYi1QH)

<p><iframe width="100%" height="180" src="https://embed.notessimo.net/?oembed=1&url=https%3A%2F%2Fnotessimo.net%2Fs%2F78491" frameborder="0" scrolling="no" seamless="seamless" sandbox="allow-same-origin allow-scripts allow-forms allow-popups allow-popups-to-escape-sandbox allow-presentation"></iframe></p>\n<p>Update to Green Hill Zone V4 version.<br>\nMajor overhaul, note fixes, better instruments, volume enhancements.</p>\n<p><a href="https://www.youtube.com/watch?v=G-i8HYi1QH" rel="noopener nofollow ugc">Original</a></p>

Green Hill Zone V4 General 2nd Update