# Playing Music

Capo's sophisticated audio engine offers a high-quality slowing engine along with effects that help you adjust what you're hearing while learning to play your favorite songs.

The Heads-Up Display
  Capo's speed and pitch controls are accessible in the Heads-Up Display (or, HUD for short) at the bottom-left of Capo's main window.
Adjusting Song Speed
  Capo employs a mastering-quality time stretching engine which allows you to slow down your music without changing its pitch.
Transposition and Pitch Adjustment
  Capo's time stretching engine also allows you to transpose music and adjust its pitch more finely without affecting playback speed.
Using Effects
  Capo includes some easy-to-use effects that help you to better hear the parts you are trying to learn.

# Related Topics

- The Basics
- Practicing
- Transcription
- Saving and Sharing your Projects
- Exporting Your Work
- Additional Resources
- Acknowledgements
- All Help Content