Limite Excerpt to 3 lines (for poetry)

Hi,

I write poetry. Is there a way that I can have it show the first 3 lines of a poem followed by […Read more].

Here’s sample poem http://shawnzahedi.com/american-spirit/
and here is where I want it to show only three lines (the poetry landing page where summaries of poems are : http://shawnzahedi.com/category/poetry/

Thanks!

https://wordpress.org/plugins/advanced-excerpt/