I cannot thank you folks enough. I found each suggestion very helpful.

In the second measure, I added the trill sign with the articulation tool, which does not include a wavy line nor playback; so I added the wavy line, using the Trill Extension tool in Smartshape...

Oops! I must have forgot. Note also that the Articulation option (second measure) sounds louder. But this can be attenuated with a hidden dynamic marking. The use of the articulation tool always has...

Thanks Michel for reminding me of the great option to create a print document separately from a playback document. In my experience, Finale does not accommodate the needs of a classical guitarist...

Finale's playback of the interval between the trilled note and the auxiliary note varies, depending on which of the three tools I use. Use of the one in Articulation tool has the advantage of...