I am fully aware of what the rights of the various parties are - and the right of the landlord to intervene if a tenant is causing annoyance to others is normally included in standard tenancy agreements. The tenant is most certainly NOT allowed to "use his property how he likes".
Yes, the tenant is entitled to quiet enjoyment, but that is not unbounded.
As well as having clauses included to protect the landlord and/or his property, there are often clauses in head leases that have to be followed. Eg for a flat, it will normally be leasehold and the head lease will have various clauses regarding (for example) playing of loud music at unsocial hours which are there to protect the other occupiers.
And of course, there are some things a landlord is compelled by law to deal with, depending on property type, tenant type, and location. For example, for some properties in some locations it s a legal duty for the landlord to control antisocial behaviour by tenants - eg if neighbours complain that there are frequent late night parties stopping them sleeping at night then the landlord can have his licence revoked if he does not control it.
Presumably you knew all that, or are you one of those tenants who believes they can do what they want and the landlord has no right to protect his property, reputation, or relations with the neighbours ?
But back to this case, I would probably be having a word with the tenant. Chances are it would go no further - but that would depend on his side of the story and whether there were any other issues.