This is "Age Is Just A Number," with vocals by Max McPherson:

https://soundcloud.com/user-61562267/age-is-just-a-number

Age Is Just A Number

I've done a lotta livin'
There's more to come,
Ain't gonna sit around,
Turn into a bum,
'Cause Age Is Just A Number,
Ain't gonna let it slow me down.

I'll go outside,
And walk in the park,
If the weather ain't bad,
I'll stay out until dark,
'Cause Age Is Just A Number,
Ain't gonna let it slow me down.

I've done so much, but I ain't done yet,
I'll do it all, so I'll have no regrets,
Still so much, I wanna see,
I'll keep goin' 'til a hundred-and-three...

Go out for a meal,
Meet up with the guys,
Gonna get out there,
And socialize,
Cause Age Is Just A Number,
Ain't gonna let it slow me down.

[Clarinet, trombone, alto sax and trumpet solos over verse & chorus chords]

I'll play piano, and banjo too,
Show those young'uns,
A thing or two,
'Cause Age Is Just A Number,
Ain't gonna slow me down.

Age Is Just A Number,
Ain't gonna let it slow me down.

Vocals by Max McPherson
All instruments by BIAB:
Style is _SPEAKEZ.STY (Speakeasy Old Time Vocal Jazz)
RealTracks in style: ~1204:Bass, Acoustic, GypsyJazzBallad Sw 110
RealTracks in style: ~1791:Piano, Acoustic, Rhythm DixielandMedium Sw 110
RealTracks in style: ~1209:Guitar, Acoustic, Rhythm GypsyJazzBalladGonzalo Sw 110
RealDrums [in style:Dixieland^2-a:Brush LH Drag, b:Brush Ride
Alto Sax 491
Medley 1982

DAW: Audacity for mixing