How to add specific songs from Bruckner and Wagner to iTunes library on older iMac and iPhone?

Is there a way you can add the last and 49th song from Bruckner Symphonies Nos. 0-9 and Wagner Orchestral Music to my artists in my iTunes library on my iMac and my iPhone? My computer I got back in 2017 and it does not have the latest software version available.

[Re-Titled by Moderator]

Original Title: discoclassicalmichael