Where is My music from Alexa stored?

where is itunes / apple music located
I have I-Tunes ( apple) operating on my windows PC., I have a paid subscription monthly.
If I go to iTunes on my PC windows 10 , it opens and displays all my saved music( 3000) and others to view if interested. On my amazon/echo smart-speaker- when 'activated with the words' .. " Play Terry's music" it 'will find and play the music I have on I tunes under "Terrys Music", BUT if I say 'Play MY Music' it plays a whole bunch of Great tunes and songs .. but I don't know where they are located within I tunes. I even have an artist or two WHICH is found under I tunes 'search' but only within its own I tunes catalogue, not mine ( saved) .. ?? what am I doing wrong for finding the search for Play MY Music.?
Windows 10 Home 64 Intel® Core™ i5-8265U (1.6 GHz base frequency, up to 3.9 GHz, 6 MB cache, 4 cores)
17.3" diagonal HD+ SVA BrightView WLED-backlit (1600 x 900) 256 GB - 5400 rpm SATA
Windows 10 //21H1 (OS Build 19043..1083) 64bit /// Firefox ESR 76.0.1 - 64 bit // 16GB Memory/ AMD Radeon HD 7700 series Video Card//N68C-GS FX2.00 gigahertz AMD Athlon 64 X2 Dual Core /[/B]

Duplicate post.

Continued here: https://discussions.virtualdr.com/sh...-music-located