“Once at the croak of a Raven who crost it,
A barbarous people,
Blind to the magic,
And deaf to the melody,
Snarl’d at and cursed me.
A demon vext me,
The light retreated,
The landskip darken’d,
The melody deaden’d,
The Master whisper’d
‘Follow The Gleam.”

Original: Per chi vive la musica con il cuore, è estremamente emozionante ascoltare ogni volta le magiche e dolci melodie del suono.
Source: prevale.net

Regarding the song "Memory"; as quoted in "Cover Story; Broadway's 'Cats': Restaged for Eternity (And We Thought They Were Kidding!)" by Peter Marks in The New York Times http://query.nytimes.com/gst/fullpage.html?res=9A05EEDB133FF932A35752C1A96E958260 (1 November 1998)

Original: (it) Nell'aria dolci e danzanti melodie del suono, nella vita la musica fa sempre da padrona.
Source: prevale.net

Source: Epipsychidion (1821), l. 9

The Noble Spanish Soldier (1622)

Mekubolim, 1906. Alle Verk, vi. 53.
Context: There are melodies that must have words... and melodies that sing themselves without words. The latter are of a higher grade. But these, too, depend on a voice and lips,... hence are not yet altogether pure, not yet genuine spirit. Genuine melody sings itself without a voice. It sings inside, within the heart, in man's very entrails!

Aulularia, Act iv, sc. 3, 1; reported in Bartlett's Familiar Quotations, 10th ed. (1919). Referenced in "That raven on yon left-hand oak/(Curse on his ill-betiding croak!)/Bodes me no good", John Gay, 'Fables, Part I, The Farmer’s Wife and the Raven.
Aulularia (The Pot of Gold)