Thank you for the tips -- I will check them out. Dm is the only open chord I can't reach for or change to easily -- it feels so nonintuitive in its form and I have trouble remembering if the first finger is on the second or third string and if the third finger is on the second or third string... it's a bit like time zones in that sense. I work across time zones and have for the last ten or more years, and I still can't seem to remember if the other person is ahead or behind.