[jasey]

Well its not as prevalent as I initially thought upon looking into my Spotify Psy-trance play list... I seems like I was thinking more about tech-trance. But never the less here is some examples I did find upon a quick look

Ellez Ria - Overdrive (Original Mix) https://www.youtube.com/watch?v=N8MoltyYRaM Acid lines are used pretty heavily throughout the track

Liquid Soul & Vini Vici - Universe Inside Me https://youtu.be/yvBK1rSUzTc?t=226 A acid line slowly filters in at 3:44

Liquid Soul & Zyrus 7 aka Talla 2XLC - The Future (Liquid Soul Mix) https://youtu.be/9Wm4PJszzuo?t=313 Two Acid lines start to filter in at 5:13

[weavie]

Yeah, those are tunes!