9.
The Discourse on the Singing Voice
209.
"Monks, there are these five dangers for one who recites the Teaching with a prolonged singing voice.
Which five?
One becomes attached to that sound oneself, others too become attached to that sound, householders too grumble -
'Just as we sing, just so these ascetics, disciples of the Sakyan, sing,' and for one desiring the production of that sound there is dissolution of concentration, the later generation follows the example of what they have seen.
These, monks, are the five dangers for one who recites the Teaching with a prolonged singing voice."
The ninth.