Hello everyone, I have what is probably a naive question.

I tuned my guitar last night to e flat to work on Marcus' Harvest of Sorrow lesson. Does changing the tuning back and forth do anything bad to the instrument? I was talking to a friend this morning about it and he said it depended on your guitar and bridge set up. I have a strat and he said it was not a problem. Is that correct? What other thoughts come to mind?

Thanks