Path: utzoo!attcan!uunet!wuarchive!texbell!vector!telecom-gateway From: optilink!jones@ames.arc.nasa.gov (Marvin Jones) Newsgroups: comp.dcom.telecom Subject: Re: DTMF Frequencies From a Musician's Point of View Message-ID:Date: 11 Aug 89 17:53:21 GMT Sender: news@vector.Dallas.TX.US Organization: Optilink Corporation, Petaluma, CA Lines: 15 Approved: telecom-request@vector.dallas.tx.us X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@vector.dallas.tx.us X-TELECOM-Digest: volume 9, issue 290, message 11 of 13 In article , wales@cs.ucla.edu (Rich Wales) writes about musical relationships of DTMF frequencies. Perhaps the more musically useful Telecom tone is precise (digital) dial tone, which uses 350 and 440 Hz. The higher of these tones is US standard concert A (middle A). There have been many times I have been away from home, or other source of musical reference, and have picked up a phone to get an "A" to help tune a guitar or keyboard. Regards, Marvin Jones {pyramid, pixar, tekbspa}!optilink!jones Optilink Corp. ATT-net: 707-795-9444 X 206 1310 C Redwood Way CI$: 71320,3637 Petaluma, CA 94952