How and on what to make a music player?

Question

Android

I want to make it like a player with music.
At startup, the usual interface and a couple of buttons should appear, when pressed, music was played in a certain extension.

I was looking for how to do it on Unity, I found only "How to create a 2D, 3D game ..."
M.b. on another platform you need to do it.
Or is it easier to make the game itself on Unity than a regular application?

Answer 1

If writing in C#:
Do it in Visual Studio using WinForms - it's easier than WPF.
How to do it - https://metanit.com/sharp/windowsforms/1.1.php
Download Visual Studio - https://visualstudio.microsoft.com/en/ (choose Community - this version is free)

Answer 2

For the player - the less he eats memory and processor time from other processes, the better. Unity is generally not an option here for this reason.
Actually, the player can be made in general with control from the command line. Or yes, WF for C# or MFC for C++.

Answer 3

Winforms, WPF, Avalonia

Answer 4

Flutter, a cross-platform framework based on the Dart language. This is a development of Google itself. It is developing at a fairly fast pace.