EECEEATIVE SCIENCE. 



299 



Simple common time, when marked 

 thus, zzp^nz or thus, — J, — denotes that 

 each 



s= 



bar con 



tains one se- 



mibreve, or its equivalent. Example : 



dBl 



or, 





=qz:qz: 



"When marked thus, 

 contains one minim^ or its 

 lent. Example : 



:zpip:prpzi-pz=ii=Ez:Q: 



—^z — ■ the bar 

 tiscZZl equiva- 



^:Jzq=tp-p: 



EOUE SOBTS OF CoMPOtJND CoMMOK TiME 



Explained, 



First Sort, cojitaining Twelve Quavers in a 

 J3ar, or their Equivalent. 



Second Sort, Six Quavers in a Bar, or their 



Equivalent. 



:fi:-qix: 



:pzp=pz::p: 



Third Sort, Twelve Crotchets in a Bar, etc. 



Fourth Sort, Six Crotchets in a Bar, etc. 



iq-zis^^p: 



i^z^niijirt: 



ip^mp^p: 



[The last two sorts are very seldom used 

 in modern music] 



Simple Teiplb Time Explained. 

 Three Minims in a Bar, etc. 



1, 



Compound Teiplb Time Explained. 

 Nine Crotchets in a Bar, etc. 



'r^q^prpipipzpipip: 



53UI Z 



Nine Quavers in a Bar, etc. 



pipzp: 



[^Compound triple time is seldom used in 

 modern music] 



N.B. — The contents of every bar in com- 

 mon time, whether simple or compound, may 

 be divided (by beating or counting) into four, 

 or into two equal parts ; and in triple time» 

 whether simple or compound, into three 

 equal parts. 



The figure 3 placed over three crotchets, 

 quavers, or semiquavers, thus : 



:p:Si=i=g — '-jioi-rpi!! ,_gz=iE-r-- 



(which are called triplets), denotes that the 

 three notes are to be played, or sung, in the 

 time of two. 



Questions fob Exebcise upon Section VI. 



1. How many crotchets, or their equi- 

 valents, would be found in a piece of twelve 

 bars marked at its commencement, thus 



— ^— or thus ? — ^ — ; 



2. A certain psalm-tune was of the length 

 of sixty-four crotchets, and was divided into 

 sixteen bars : what was the signature at the 

 commencement ? 



3. A hymn-tune was of the length of 

 thirty-two crotchets, and was divided into 

 sixteen bars : what was the signature ? 



4. A slow movement M^as of the length of 

 forty-five minims, and was divided into fifteen 

 bars. In what time was it written P 



5. Another movement measured one hun- 

 dred and twenty crotchets, and was divided 

 into forty bars : what signature was found 

 at its beginning ? 



