Musicolet. It's a free music player app. It let's my organize all my music (downloaded onto my SD card) and play it without ads. I ended up spending $5 to get the premium version for crossfade and other features. Originally found it after my student discount spotify +Hulu plan ran out. I canceled spotify and use the lowest tier of Hulu ($2.15 per month with a student discount) now. Way cheaper than paying $10+... Source: 6 months ago

KitKat was so good that I'm still rocking it on a NoteⅣ for offline maps and music in my car even though there are newer official updates available from Smasnug: https://i.imgur.com/AhYJSYP.jpg The newest version of Musicolet still supports it! https://krosbits.in/musicolet/. - Source: Hacker News / 11 months ago

Yeah I do similar, I actually use musicolet to listen to my offline music library (https://krosbits.in/musicolet), an android app that is just offline, no ads, no network permission at all, nothing. It does the job very well and it does not mine any data or show any ads. I highly recommend to give it a try (I assume you use android?). And to add, while it is free and I could have continued just fine not paying... - Source: Hacker News / about 1 year ago

Musicolet is hands down the best music player I've found on Android and it's fully featured for free https://krosbits.in/musicolet/. Source: almost 2 years ago

I use Musicolet for Android (https://krosbits.in/musicolet/); so far the most complete music app. Source: about 2 years ago

This is hilariously biased. This is HN, you're not talking to people who don't know what Linux is. Hell, a huge portion of us are linux engineers of various sorts. You're also in a thread literally about a linux app. Anyway. I would never, ever use Linux as a desktop environment over OSX after the experiences I've had with it over the last 20+ years. OSX GUI applications absolutely blow everything that Linux has... - Source: Hacker News / 10 months ago

Https://rogueamoeba.com/soundsource/ (this has parametric EQ but it's a bit buried IIRC. It also has built-in support for AutoEQ according to this page so you might have to do almost nothing if you like the Harman curve). Source: 11 months ago

I've looked at https://rogueamoeba.com/soundsource/ and the features it has seems okay such as per-app volume levels. But I'd like it so when I connect a certain pair of headphones, then a pre-defined output and input device is set. So for Headphone A, the output might be set to this pair but the mic will be the build-in mic in my Macbook. And for Headphone B, both the output and input should be set to this... Source: 11 months ago

Https://rogueamoeba.com/soundsource/ or https://github.com/kyleneideck/BackgroundMusic. Source: about 1 year ago

Soundsource - per app volume control just like windows. Source: about 1 year ago