Shakespeare Wiki
https://poemshape.wordpress.com/2008/11/30/what-is-iambic-pentameter-the-basics/
A useful point:
Elision
[There are two more commonly used symbol to consider]. One is the symbol for elision. Elision means that instead of pronouncing a word as having, say, two syllables, it is pronounced as having one. Likewise, a word that appears to have three syllables, might be pronounced as two.
This symbol denotes elision.
Consider the following line:
An extract which is amusing:
Almost every major poet , prior to the 20th Century, wrote Iambic Pentameter when writing their best known poetry. Exceptions would be poets like Walt Whitman (free verse), Robert Burns (who wrote a variety of metrical lines – mostly iambic), and Emily Dickinson (whose meter is derived from hymn tunes, which is why so many of her poems can be sung to Yellow Rose of Texas).
How my heart sings 
That’s a good link. I like this thought : “And here’s the thing to know. What makes this passage great is what makes poetry great. It’s not content. This is what novels do. There are many great and profound passages of prose. What makes poetry great is something else: style—ordinary content made into something extraordinary.”
Thank you for reading it.Yes,it’s like music in some ways.And there are many kinds of music.Maybe even the sense of the words doesn’t matter as much as we think.The rhythme affects one.And the silent spaces between words.
I found the trochaic description useful because I struggled on Friday with using words ending in “ion.”
So I may go back and revise that.This bit is funny mentioning the Yellow Rose of Texas!
Quuote:
Almost every major poet , prior to the 20th Century, wrote Iambic Pentameter when writing their best known poetry. Exceptions would be poets like Walt Whitman (free verse), Robert Burns (who wrote a variety of metrical lines – mostly iambic), and Emily Dickinson (whose meter is derived from hymn tunes, which is why so many of her poems can be sung to Yellow Rose of Texas).
Yes, music and poetry share many aspects. They can both cause that tingle in the back of the neck, or shiver down the spine! I suspect it’s to do with the associative nature of our memory. It’s true, too, that we don’t need to understand the meaning of the words for these associations to be triggered. They don’t have to be erotic (as in the Cleopatra example) but some form of ecstacy arises from the mental processes.
Take, for example, Hopkins’ line (from ‘The Wreck of the Deutschland’) “Thy unchancelling poising palms were weighing the worth,” I don’t know quite what it means but it triggers a whole chain of thoughts in my mind, which may well be unique to my own pattern of experiences. So, in addition to seeing hands like scales of justice, I also see palm trees, like arches in a cathedral chancel, but open to glimpses of starlight above. Probably, nothing to do with what Hopkins was thinking but making a pattern for me, together with the surrounding images in the adjacent lines of the poem and, so, creating a larger sensual experience.
That was Guy’s favourite poem! I think life itself,our beating hearts, is all connected to music and rhythm.And that line affects me too though I don’t have quite the same associations.I am glad I found that article because already it has helped me with what I’ve been working on.Patterns too of all kinds are very affecting