Alternatives Software for iTunes on Mac

I forgot to mention dropouts.  I had dropouts because at lower band 2.4GHz there are only 3 independent channels (since each of 12 channels is almost 4 channels wide).  I bought dual band router, switched to 5GHz and problem is gone.  5GHz has more channels and poorly penetrates walls making it difficult for outside signals to enter home.

ijgerens- for 6 weeks now,Having a problem with intermittent dropouts, hanging, and complete freezing resulting iTunes quitting. Sent reports to Apple. They elevated to engineering 3 days ago but have heard nothing from them regarding solving the problem. Now, it cannot get it to accept the current library. It has an old library that doesn't contain some of my most recent downloads and purchases. your thoughts

@joscow  Sorry to hear that.  I have I tunes Version 12.9.5.5 running on late 2014 MacMini with Mojave Version 10.14.6 and have zero problems.  I changed library, but it was long time ago.  There is Itunes media location (Preferences => Advanced) and Library name (Preferences => General).  All my files are under folder Itunes/Itunes Music.  I have marked (Preferences => Advanced)  "Keep Itunes Media Folder Organized" and "copy Files to Itunes Media folder when adding to Library".  When I point to any folder containing music and select File - Add to Library it adds listing to named Library and copies files to "Itunes media location".  You can start new Library with new name and media location and then add any file you want.  

I had dropouts with 2.4GHz but never hanging.  How much memory you have.  Exit programs you don't need.  I hope it will help.
I went thru many versions of OS and few Macs and never had problem with Itunes.

Another vote for Audirvana, it works flawlessly with MacOS, it is really user friendly and it allows to use iTunes Library together with any other that you want create. 

joscow The dropouts may be related to your WiFi. If you are on 2.4 GHz band try to change to a different channel or if you have a dual band router, try 5 GHz.

The freezes and hangups are a different matter. Perhaps you need to reinstall iTunes, or perhaps your iTunes library is corrupted. What version of iTunes are you using and what Mac OS and what are your computer specs. 

I am currently using a 2014 Mac Mini as a music server running Mojave Version 10.14.4 and iTunes Version 12.9.4.94 and have had no problems. For the last 9 years I have had several different Macs running different Mac OS versions and iTunes versions and never had a dropout, hangup or freeze.