Here is the contact page from the link I listed. It is current. Apparently John would rather have phone calls. See last paragraph:
Musical Concepts
189 Jacobs Way
Saint Peters, MO 63376
Phone: 636-272-0040 10am-4pm(central time) weekdays
This line is FAX only!! >>>>>>> Fax: 636-272-1811 anytime
Musical Design
189 Jacobs Way
Saint Peters, MO 63376
Phone: 636-474-9266 10am-4pm(central time) weekdays
This line is FAX only!! >>>>>>> Fax: 636-272-1811 anytime
Send e-mails to John Hillig - jhillig@musicalconcepts.com
I love email but.......................
I love your e-mails, especially the ones loaded with praise, but please guys! Serial e-mails that take hours of answers, "give and take" or those the size of a small book are too time consuming for us to address. If you have detailed questions then it is important to talk directly with us by phone. E-mail is a blunt instrument!
We try to answer all of our e-mail, but remember, if you have an e-mail account with a "size limit" which is common for "free" mailboxes, and your inbox is full, I can't answer your e-mail. It will be kicked back as "undeliverable"! I can only make one attempt in these cases. So if you don't get an answer try again or call.
