There are five big Masses during SEEK. Three of them feature praise bands, so while the music is probably very well done (given the very experienced band members), it's probably not what MaestroMark (or many of us) would like to experience at a Mass.

Contrarily, the other two Masses feature a traditional choir, music selected and conducted by Adam Bartlett (whose name will be familiar to many forum-goers). Those Masses feature chant in English, in Adam's adaptations, as well as motets by esteemed composer Frank La Rocca and numerous traditional hymns.

So they're offering two very contrasting modes of musical worship.

There's probably music during Eucharistic adoration and other conference events, but I don't know what that music is. If I had to guess, I'd wager more praise band, perhaps toned down to "meditative".

I have attended a conference, and played organ with the choir at it as a college student. The masses with the choir are beautiful and the music is tastefully selected as stated above.

At the masses with a more contemporary ensemble- they still often used some antiphons and more traditional settings of music. The masses still use noble music and are incredibly well executed. While a lover of chant and organ myself, and normally hesitant when I hear of that sort of ensemble, in no way did the music make me uncomfortable. It showed me that if done well, in the right setting, and within specific circumstances, can offer something beautiful to the Lord and be an encounter with beauty for those present. I think it is also important to note that these masses are celebrated in an event center or similar space- with long processions and unique logistical considerations.

I have nothing but the utmost respect for the music that FOCUS uses at their conferences. As a former FOCUS student myself, they do a wonderful job of introducing college students to reverent worship and my attendance at the conference had a significant impact on my desire to work towards a renewal sacred music within a parish setting. Much of what I learned from Adam Bartlett working in music at the conference, has been applicable within my current parish music director job. What we learned there we were even able to take back and implement some of the antiphons at our campus student center. I know that this has been the experience of others as well- who were there the same year I was.

We should commend FOCUS on the work they do to promote reverent liturgies with beautiful music. :)

One Mass video has been posted so far:
https://youtu.be/H0yHVsaf6Vk?si=F7wisjBkD3Zmth2f&t=54

Adam Bartlett on Farcebook, commending SEEK as a beacon of hope:
https://www.facebook.com/adambartlettmusic/posts/pfbid03PDVWj4NaPXsF4FDaxHFWW1kmjnNmYoKHuqbcZWqvmupcdXhN4BNSJnfwpjMLykEl

One thing I did not see in the SEEK day2 video was much in the way of clergy or people singing, maybe one in twenty at best.

I found one parish with weekly Mass livestreams that uses Source & Summit: Christ the King in Milwaukie, OR.

https://www.youtube.com/@MonsignorJohnCihak/streams

It's very hard to find parishes online that use S&S.