Learn English – “Live concert” versus “Concert”

Given these definitions:

ironic:

1. containing or exemplifying irony
2. ironical
3. coincidental; unexpected

ironical:

1. pertaining to, of the nature of, exhibiting, or characterized by irony or mockery
2. using or prone to irony

The only difference I could plausibly assert is that ironical means it uses irony, where ironic means it is an example of irony. That is, this conclusion of this book is ironic. This ironical book is a good, fun read. This ironical author is one of my favorites.

Parenthetically speaking, the inclusion of ironical in the definition of ironic makes sense in this interpretation because an example of irony must by definition use irony.

'Amalgam' (avoid amalgamation unless you are actually referring to a process) is precisely the wrong word to use if you're trying to emphasize unity and harmony of the result. 'Combination' is rather neutral. 'Union' or 'blend' would be better.