Analysis of Room 5: The Concert Singer

I'm one of these haphazard chaps
Who sit in cafes drinking;
A most improper taste, perhaps,
Yet pleasant, to my thinking.
For, oh, I hate discord and strife;
I'm sadly, weakly human;
And I do think the best of life
Is wine and song and woman.

Now, there's that youngster on my right
Who thinks himself a poet,
And so he toils from morn to night
And vainly hopes to show it;
And there's that dauber on my left,
Within his chamber shrinking --
He looks like one of hope bereft;
He lives on air, I'm thinking.

But me, I love the things that are,
My heart is always merry;
I laugh and tune my old guitar:
Sing ho! and hey-down-derry.
Oh, let them toil their lives away
To gild a tawdry era,
But I'll be gay while yet I may:
Sing tira-lira-lira.

I'm sure you know that picture well,
A monk, all else unheeding,
Within a bare and gloomy cell
A musty volume reading;
While through the window you can see
In sunny glade entrancing,
With cap and bells beneath a tree
A jester dancing, dancing.

Which is the fool and which the sage?
I cannot quite discover;
But you may look in learning's page
And I'll be laughter's lover.
For this our life is none too long,
And hearts were made for gladness;
Let virtue lie in joy and song,
The only sin be sadness.

So let me troll a jolly air,
    Come what come will to-morrow;
    I'll be no cabotin of care,
    No souteneur of sorrow.
    Let those who will indulge in strife,
    To my most merry thinking,
    The true philosophy of life
    Is laughing, loving, drinking.

And there's that weird and ghastly hag
Who walks head bent, with lips a-mutter;
With twitching hands and feet that drag,
And tattered skirts that sweep the gutter.
An outworn harlot, lost to hope,
With staring eyes and hair that's hoary
I hear her gibber, dazed with dope:
I often wonder what's her story.