<https://www.themodernvocalistworld.com/topic/900-falsetto-training/#comment-10778>
<http://schema.org/text>
"Nathan: The answer depends on your goal.  If you desire to have a 'performable' falsetto as a part of the vocal textures you can use in songs, then exercise it as much as you need to.  \n \nHowever, there is a caution.  The more you practice falsetto, the more likely it will be to show up unexpectedly in the passaggio.  The key here is balance of activity, always ending with full-voice coordination. \n \nTo that end, I follow the recommendations of Cornelius Reid, the NYC teacher who brought this kind of approach forward from the writings of singing teachers of long ago, and popularized it in the middle of the 20th Century.  Do blatty low voice (a, as in Cat, and Ih) as very slow scales in the lower voice, alternating with hooty OO and EE slow scales in the falsetto high voice .   Go as low, and as high, as you can comfortably and without strain.   All told, 15 minutes of alternations, 2 times a day (morning and afternoon are fine) is enough.  Then, do your full-coordinated voice singing just like you currently do. \n"
<https://www.themodernvocalistworld.com/topic/900-falsetto-training/>