Nginx force redirect or rewrite mp3 url path

Question

I have this mp3 url:

http://example.com/downloads/low_quality/songs/song_name.mp3

and i want force rewrite to this url without allow downloading first url:

http://example.com/downloads/high_quality/songs/song_name.mp3

Indeed i need replace low_quality with high_quality path. I trying use alias and rewrite, but not working. it start downloading first url low_quality.

location /downloads/low_quality/ {
    alias /downloads/high_quality/;
}

or

location ~* ^/downloads/low_quality/(.*)$ {
    rewrite ^/downloads/low_quality/(.*)$ http://example.com/downloads/high_quality/$1 permanent; 
    break;
}
// but low quality download started!

low_quality file always is exists but i don't want downloading when requested. i want redirect(rewrite) to second url high_quality.

Answer 1

according to https://www.nginx.com/blog/creating-nginx-rewrite-rules/

this is true rewrite:

rewrite ^/downloads/low_quality/songs/(\w+)\.?.*$ /downloads/high_quality/songs/$1.mp3 last;

high quality requested and downloaded.