He is apparently in stable condition.

https://apnews.com/article/al-di-meola-heart-attack-bucharest-romania-1c415288e19b3881b7abe43fc2601b83

Well, that is good. Must have been an awkward couple minutes for the other two guys, especially if they didn't know what was happening.

Update: https://deadline.com/2023/09/guitarist-al-di-meola-suffers-heart-attack-on-stage-cancels-remaining-tour-1235560526/

"After receiving treatment, Di Meola released a statement saying he would put his tour on hold until he recovers:

"I wanted to take a moment to express my deepest gratitude for the incredible outpouring of love and support that I've received during the last 24 hours. Unfortunately, I'm facing a medical situation that requires some time off from performing and touring. I want to assure you that I'm receiving the best care possible, and I'm fully committed to making a complete recovery. I'm planning to return in 2024, and I'm already looking forward to making music together once again."

In a follow-up video Friday, Di Meola's wife Stephanie gave an update thanking fans for the well-wishes and saying her husband was doing much better."