Oh Shennandoah Played on a Kongsheng Tremolo

No effects. Harp is a Suzuki Humming in G. It has a dry tremolo compared to some of the German tremolo harps. You can speed up or slow down the tremolo a bit by pinching the airflow into the top or bottom holes. I do that sometimes. Sometimes without thinking about it. I can't remember what I did here. If you pinch the airflow by blocking a hole a bit the reed goes a little flat. If you flatten the top reed the tremolo rate increases. If you flatten the bottom reed the tremolo rate decreases. So you can push the harp up into your top lip to speed things up or push it down into your bottom lip to slow things down. Or you can block off the bottom row completely and just play the top reed and sound like a standard harp.