I am at an open mic run by the Boston Association of Cabaret Artists (BACA) in an elegant UU church in Watertown, MA.

Steve Heck — a wonderful local pro — is playing the grand piano, and I am singing “Over The Rainbow.”

It is one of the songs in a new show about Harold Arlen which I have recently begun performing with pianist Joe Reid.

After Steve takes a piano solo, I re-enter at the bridge of the song (“Some day I’ll wish upon a star…”) and then I hear elevator doors opening behind me.

Three women — friends of Steve Heck, I later learn — appear on stage with me.

They did not realize that the elevator would deposit them there.

I turn and — still singing — welcome them so that I can escort them across the stage and down into the audience.

But as I do this, I realize that they probably love music and very likely know the words to “Over The Rainbow;” so I encourage them to stay with me onstage and sing — which they happily do.

One woman in particular catches my attention because she is adding a beautiful harmony in a great big, belting voice.

We make eye contact as the song builds to a dramatic climax of “Why oh why can’t I?” — each of us singing at the top of our lungs, my microphone completely unnecessary.

The entire series of events lasts less than a minute, and the entire room is happily caught up in the moment.

Afterwards, during a break period, I am asked how I managed to time their arrival so perfectly.

I explain that I had never met them before and that the entire experience was utterly spontaneous — unfolding moment by moment with no guidance other than the lyrics of the song, Steve Heck’s solid accompaniment, and our shared love of music.

Ahh, music!

Ahh, spontaneity!

I have been experiencing a lot of spontaneous musical moments in the past few months.

Joe Reid and I put together our hour-long Harold Arlen program in one rehearsal that lasted about two hours.

He is a jazz pianist who is very comfortable making music in the here and now.

I brought a bunch of Arlen sheet music to his house plus a rough idea of a song run order.

We double-checked the keys for all the songs, played each one through once or twice, and Joe was ready to take it public.

So far we have performed at two retirement communities with very enthusiastic audiences (and we did get together for another hour-long rehearsal between our first and second performances…)

I also spent many additional hours making sure I knew exactly how the song was originally written, reading several books about Arlen I ordered from my local library, recording practice piano tracks with Doug Hammer, memorizing lyrics, and writing the “patter” to lead from one song to the next.

All of this preparation helps me to surrender to the moment when we are performing these wonderful songs.

I have also begun leading Music Together (MT) classes in Arlington and Belmont (a neighboring town where Mitt and Ann Romney used to live).

MT is a very-well-researched and very-well-planned program to introduce small children — along with their caregivers — to the joy and fun of active music-making.

Although participants are encouraged to learn 30 new songs accurately — each one carefully selected to include a wide variety of keys and rhythms — per semester, we teachers are given free rein to be spontaneous and improvisatory during class.

I am sure my training during the past six months to become a MT teacher helped me to go with the flow at the BACA open mic when those three women appeared onstage.

And I have experienced many moments of musical connection with children and caregivers during my first two weeks of MT classes which have given me a similar jolt of delight.

I think this might be what I am supposed to be doing here on planet earth…

The song in the player at the beginning of this blog post is a Harold Arlen/Johnny Mercer classic called “Accentuate the Positive” which I recorded with pianist Doug Hammer during a rehearsal for the “Mostly Mercer” show that singer Bobbi Carrey and I created last year.

Thank you to Doug Hammer, Joe Reid and Bobbi Carrey for being important musical collaborators.

Thank you to the generous and skillful photographers at Pixabay.

Thank you to all of the families who have signed up for my Music Together classes.

And thank YOU for reading and listening to another one of my blog posts!

Deep breath in.

And deep breath out.