"When working on GUI design, shapes are a great way to achieve a realistic look to your design. As the shapes are vector based, you enjoy the ability to resize them with minimal detail loss, which is a significant consideration in GUI design.

In this tutorial, I will show you how to create a detailed audio player from scratch. This tutorial will be a great opportunity for you to practice those Shape Tools and Layer Styles skills, with lots of adding and subtracting of Shapes. Enjoy!" - Roy Weiss

Here is a link to the written version of the tutorial How to Create a Detailed Audio Player in Photoshop and the video version is below.