The Most Impressive Mass in Cologne Cathedral to attend

Question

According to the Cologne Cathedral's English website (now decimated to a single page):

Service hours Masses at Cologne Cathedral are held at the following times: Working days (Monday to Saturday): Mass: 6.30 a.m., 7.15 a.m., 8.00 a.m., 9.00 a.m., and 6.30 p.m. Devotion: Monday to Friday, 6.00 p.m.

Sundays: Mass: 7.00 a.m., 8.30 a.m., 10.00 a.m., 12 midday, 5 p.m., and 7 p.m. Divine Office: 6.00 p.m.

Please consult also our up-to-date Mass times page.

I want to attend such an event, for secular and artistic reasons only (I am not a Christian). I want to consult the best time to attend such an event (e.g. maybe the "Divine Office" is the longest and most impressive). Do all the masses include an organ and a choir?

What is the best time to visit a mass in Cologne Cathedral to get the most out of the artistic experience? Any tip regarding experiencing a mass (specifically one in Cologne Cathedral) will be welcomed.

I am not a Christian, so I have no clue which mass or service is being considered more important or festive, so names like "high mass", "devotion" and "divine office" are meaningless to me.

One last note: to make "impressive" less prone to opinion-based interpretation I would define a mass as impressive if it is long enough and includes a choir and a pipe organ. Also, a mass is more impressive if it is held in the main nave and choir, not in a side chapel.

Answer 1

The German webpages are not very forthcoming about the content of the individual services either. However, I note that the Sunday 10:00 Hochamt (also referred to as Kapitalsamt/Pontifikalsamt depending on who is leading the service) is broadcast on the cathedral's broadcast page (domradio.de). None of the others are, hence I would assume this is the main service. This is very much in line with my, albeit somewhat limited, experiences with other catholic churches in Germany.

At least on this (21 July 2024) particular Sunday evening the recording of this Sunday morning's service is still available on the webpage, you could have a look to see if this fulfils your criteria.

As I noted in a comment, if you are interested in hearing the organ, there are free concerts during the summer, Tuesday's at 8:00 pm, the keyword to google is "Orgelfeierstunden". For 2024, these run until the end of August.