In con­trast, the rhythms of the meta­bolic sys­tem can no longer be modu­lated in their fre­quency. On the con­trary, each func­tional area has a se­ries of dif­fer­ent pre-formed fre­quency bands which, ac­cord­ing to the de­mands on per­form­ance, are util­ized in a rap­idly chang­ing man­ner. All these fre­quency bands, how­ever, re­late to each other in sim­ple whole num­bered fre­quen­cies, and are so sub­ject to a har­monic-mu­si­cal or­der.

The rhythm of the stom­ach peri­stal­sis, for in­stance, with its wave in­ter­val of approx. 20 sec­onds has a fre­quency ratio of 3:1 com­pared to the one-min­ute ba­sic rhythm of the fun­dus mus­cu­la­ture of the stom­ach and the con­trac­tion rhythm of the duo­de­num a ratio of 4:1 com­pared to the rhythm of the stom­ach peri­stal­sis.

An iso­lated piece of smooth in­tes­ti­nal mus­cu­la­ture shows spon­ta­ne­ous-rhyth­mic con­trac­tions whose pe­ri­odic du­ra­tion con­stantly changes in whole num­bered jumps (il­lus­tra­tion 8). There are proba­bly mu­si­cal-har­monic time struc­tures em­bod­ied in each in­di­vid­ual cell which cor­re­spond to the har­monic in­ter­val pro­por­tions.