Do the poems "The Tyger" & "The Lamb" by William Blake exemplify cacophony, euphony, both, or neither ?

Blake uses stronger elements of
cacophony in and euphony in The Lamb to emphasize the different temperaments of the
creatures.

Cacophony is a dissonant or unpleasant sound. 
The Tyger is a harsh poem, demonstrating the ferocity of the beast.  In this line, you can see
the force of the .

What the anvil? what dread
grasp 

Dare its deadly terrors clasp? 

The fierce elements are subdued in The Lamb, where euphony is emphasized.  This way
the poem has a gentler tone and rhythm.  The poem is much sweeter and calmer.

He is called by thy name,

For he calls himself a
Lamb: 

He is meek & he is mild, 

He became a little
child

The poem is much more mellow, especially in
contrast to the roughness of the tiger's poem.  Blake intended the two to be contrasted and
compared, and chose the rhythm carefully to mimic the animal's nature. 

href="https://www.merriam-webster.com/dictionary/cacophony">https://www.merriam-webster.com/dictionary/cacophony
href="https://www.merriam-webster.com/dictionary/euphony">https://www.merriam-webster.com/dictionary/euphony