Contrivxnceof Cannon,Example.

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I Treblei —g

2 Treble.

I Bafs.

2 Bafs

&

Here you have two Trebles and two Bajfes-,which. as they now ftand, may be played or iung,as well bacward as forward $ and will refetnblea LelTon of two Strains: the firft forward j andthe lecond Strain backward •, as upon trial youwill perceive. But if you would have one Partto be fung backward whilft the other fing for-ward * you mult then rum one of the Trebles , andlikwile one ot the Bajfes, thecontrary way ? andjoyn them together, fo, tbat rheir two ends maymeetin the middle ofthe Leflon ; as you fee inthe following Example : and then the Harmonywill be righr, whe.her you fing them backwardor forward j or one Part forward and the otherPart back ward. Likewife, two may fingthe 7 Ve-ble 5 one forward, the other backward ; andother Two, the Bajs in like manner ; and then,it is a Canon of four Parts in two.

Example,