Well, this may not be a popular opinion, but I think, unless Max has permission to use any of those, he should just pull 'em. None of 'em look very "trad" to me.
Of course there may be legal implications to complying, like if you do it you admit culpability,(and have to keep doing it -- like not taking the 5th) and I'm not a lawyer, so I don't know about that.
Is HFA also what happened to a bunch of Sydney Carter songs? I noticed some had been pulled from the DT.
Blessings,
BArbara