Sound

• Are there any differences in the sound hardware on the GB, GBC, & SGB?
• Does it matter in which order I set the sound registers?
• What all techniques are used to play WAV files on a GB?
• I get very low volume when playing WAVs. What can I do?
• Should I disable sound if I am not using it?
• Can I dynamically modulate the volume envelope of a sound channel while it is playing?
• Can Wave Pattern RAM ($ff30-ff3f) be modified at any time?
• Is there anything I need to know about the "sweep" register?
• Are there any bugs in the GB sound hardware?