I doubt she said to herself "okay now I'm ready to hang myself - let me be courteous to the neighbors and turn off the music." Ummm NOT.
I haven't suggested anything about anyone wanting to be "courteous to the neighbors." I am questioning as to why a woman determined to carry out a suicide would supposedly play loud music, which could have resulted in police showing up. Why turn on music so loud a neighbor believed they were having a party that night?