Thank you for suggestion, I seen an announcement about this function, but somehow forgot about it.

Sending next version of these patches. Changes from the next version:

• Removed my version of title gathering into one existing in org-clock.el
• Split org-clock-get-file-title renaming into separate commit
• More grammar and wording fixes in changelogs

      Thanks,
      Mikhail

Ihor Radchenko <yantar92@gmail.com> writes:

> Mikhail Skorzhisnkii <mskorzhinskii@eml.cc> writes:
>
>>> Also, what will happen in a file like
>>>
>>> #+TITLE: Begin title
>>> #+TITLE: .. end title
>>>
>>> ?
>>
>> Hm, never did this myself. Now concatenate the list of property values. I have
>> tested it and space as a separator looks good, if the intention of several
>> titles is to have one big title.
>>
>> But what if several titles are title and subtitles? We can provide a way control
>> that behaviour, but my gut feeling that it would be a rather confusing.
>
> See org-clock-get-file-title. You can move that function into org.el and
> rename to org-get-file-title.