Need help identifying piano tune

[sonata58]

I have been trying to identifying this tune for years (see attached). It has the feel of a pop ballad. I have used song identifier apps on the internet, but none of them can identify it.

I have played it for people whom I thought might know it. They recognized the tune, but they couldn't name it.

The song was used in a 50th wedding anniversary video for my grandparents 10 years ago (we didn't choose the music; we just sent all the pictures to a company who created the video). They both passed away last year, and now the song has become more special to me.

I learned the opening by ear and recorded myself (sorry for the poor recording quality -- I just used my cell phone). Interestingly, the first phrase of the melody is very similar to the Eighteenth Variation of Rachmaninoff's Rhapsody on a Theme by Paganini.

Does anyone know what this tune is?

[sonata58]

Update:

I finally identified the tune! I figured out how to rip the audio from the video. And then I found a website to which you upload a tune and it identifies it (https://audiotag.info/index.php).

The song is "Part of My Heart" by Jim Brickman