its not, but on the other hand, existing GUI APIs are not live coding friendly nor made in Pharo ;) Also the moment you want to change something or hack something , welcome to C++ hell. You sacrifice native look and powerful features, you get a live easy to hack system in return. But as I said Pharo DOES NOT forbid you from using Native libraries of any sort, including GUI. The fact that the vast majority of pharo developers choose not to use native gui apis, says a lot about how desirable GUI APIs are compared to "non native look" Pharo GUI API which is called Morphic :)
Why talk about a music app that a small amount of people use while we can talk about the most popular pro music apps out there. The kind of apps that the whole music industry is based on. Cubase , Ableton Live, Logic and Reason.
Hmm, I just started Logic on my computer and it uses native windows and lots of native UI. There is a main window, preferences window, help window, keyboard window, colors window, metronom settings, ... there is a menu bar with ten menus - native. There are native open/save dialogs, ...
None of that is in Pharo. It uses a clunky font, clunky windows, clunky shadows on windows, clunky resizing of the main window, its own open/save dialogs, its own finder, ...
