used in Playing Peed Instruments. 



275 



the new register begins, the octave key or keys being 

 opened for all succeeding notes. It will be noted that this 

 temporary rise of pressure at the commencement of the 

 harmonic" notes is also to be found on the curves for the 

 clarinet. 



Table IT. 



Pressures for Scales on E|? Alto Saxophone. 



Notes. 





Inches of Water. 











Sin 



gle Reed. 



Double Reed. 





Forte. 



Piano. 



Forte. 



B 



JO 



6 



14 



C 



10 



5-5 



13-5 



D 



10 



5-8 



13-5 



E 



11 



5-75 



137 



i F 



11 



5-5 



13-o 



G 



11 

 11-5 



6 

 6 



13-7 

 14 



(A) 



B 



11-5 



fi 



13-7 



C 



12 



5-5 



14 



D 



14 7 



145 



14 



13-5 



13 



1225 



11 



10-5 



11 



11 



6-5 



6-25 



6 



6-5 



6-6 



6 



6 



575 



5-5 



5-5 



15 

 15 

 15-5 

 17 

 19 

 23 at least 



E 



F 



G 



A 



B 







D 



E 



F 





The results obtained when playing very softly on the 

 saxophone shows that there is very little change of pressure 

 required right through the entire compass of the instrument. 



The third column of figures in Table II. and the upper- 

 most curve on the saxophone chart (PI. III.) show some results 

 obtained by using a bassoon reed on the saxophone. Here 

 we have a very different set of figures and form of curve, 

 the pressures required for the higher notes being greatly in 

 excess of those required for the lower notes, thus agreeing 

 with the results shown in Dr. Stone's tables for the oboe and 

 bassoon, and in addition all the other instruments in his 

 table. The figures and curve indicate that but little modi- 

 fication of pressure is required for the fundamental notes, 

 but after passing the middle D the pressures rapidly increase. 



T2 



