source file: mills3.txt Date: Thu, 8 Jan 1998 00:31:34 +0100 Subject: blues scale From: "Paul H. Erlich" On that guitar, I seem to be drawn to the following inversionally symmetrical scale for blues: 22TET cents 0 0 6 327 9 491 10 545 13 709 19 1036 Harmonically, it looks like this: 9---------0---------13 \ / \ \ / \ \ / \ \ / \ 6---------19--------10 In just intonation, it would be Ratio cents 1/1 0 6/5 316 4/3 498 27/20 520 3/2 702 9/5 1018 but that syntonic comma between 4/3 and 27/20 is too small to function as a real melodic interval in a blues context. The 22TET degree is big enough to evoke a distinct pitch, but small enough to sound interestingly unusual. The 6/5 and 9/5 are not really that "bluesy" sounding; their sharpened versions in 22TET do better, especially with vibrato added. "Blue notes" on the guitar are almost always between major and minor thirds and between major and minor sevenths. I don't agree with those who make them out to be some sort of septimal ratios, though the 7/4 is common in harmonica blues, and I myself love to use the 7/6 over the IV chord (on the 12-tone guitar by bending the major 2nd up a third-tone). I think the blues scale has more to do with 7TET than with any just ratios. SMTPOriginator: tuning@eartha.mills.edu From: "J. Pusey" Subject: How to order the Bosanquet book from Diapason Press PostedDate: 08-01-98 02:28:45 SendTo: CN=coul1358/OU=AT/O=EZH ReplyTo: tuning@eartha.mills.edu $MessageStorage: 0 $UpdatedBy: CN=notesrv2/OU=Server/O=EZH,CN=coul1358/OU=AT/O=EZH,CN=Manuel op de Coul/OU=AT/O=EZH RouteServers: CN=notesrv2/OU=Server/O=EZH,CN=notesrv1/OU=Server/O=EZH RouteTimes: 08-01-98 02:28:25-08-01-98 02:28:26,08-01-98 02:28:20-08-01-98 02:28:20 DeliveredDate: 08-01-98 02:28:21 Categories: $Revisions: Received: from ns.ezh.nl ([137.174.112.59]) by notesrv2.ezh.nl (Lotus SMTP MTA SMTP v4.6 (462.2 9-3-1997)) with SMTP id C1256586.00081395; Thu, 8 Jan 1998 02:28:41 +0100 Received: by ns.ezh.nl; (5.65v3.2/1.3/10May95) id AA06507; Thu, 8 Jan 1998 02:28:45 +0100 Date: Thu, 8 Jan 1998 02:28:45 +0100 Received: from ella.mills.edu by ns (smtpxd); id XA06707 Received: (qmail 12114 invoked from network); 7 Jan 1998 17:28:35 -0800 Received: from localhost (HELO ella.mills.edu) (127.0.0.1) by localhost with SMTP; 7 Jan 1998 17:28:35 -0800 Message-Id: Errors-To: madole@mills.edu Reply-To: tuning@eartha.mills.edu Originator: tuning@eartha.mills.edu Sender: tuning@eartha.mills.edu