After a GarageBand update you may need to download the sound library again - check the menu 'GarageBand Sound library' and click 'download all available sounds'. Once GarageBand has downloaded all available sound, launch MainStage 3, then check the Sound Library in MainStage as well. Go to 'MainStage 3 Sound Library Open Sound Library. Apple Garageband Jam Pack: Rhythm Section. The Rhythm Section Jam Pack provides with the backing band. Of the 2,000 Apple Loops that come in Rhythm Section, half consist of drum beats you can use to introduce variations on grooves — with fills, alternate patterns and numerous other innovations.Guitarists and bass players will find bass lines, chord progressions, and guitar and keyboard riffs.
The installers from the old Jam Pack disks do not run on a Mac with Catalina. Some of them are even including PowerPC Code. You could copy the contents of the installer to a folder on your Mac and ctrl-click the installer and use 'Show Package Contents'. See, if you can find the instruments inside and copy them out. I did not keep the old installers.
Do you still have a an old backup from an earlier system version, where you had the JamPacks installed?
Then check the backup and look at the libraries mentioned in this Support document (GarageBand, Logic: Where loops get installed - Apple Support) for the instruments and loops from the JamPacks. You can simply copy them over and install them in the corresponding folders.
If you never uninstalled GarageBand '11 and kept it installed alongside GarageBand 10, the JamPacks may still be there and ready to use. GarageBand 10 is showing the instruments from the Jam Packs in the Legacy section of the Instrument Library.
Sep 22, 2020 7:59 AM
Apple Garageband Jam Packs All-inclusive
Apple Garageband Jam Packs All Killed
Songwriters and vocalists take note: Jam Pack 3: Rhythm Section provides you with the ultimate backing band, one that will never get tired. Of the 2,000 Apple Loops that come in Jam Pack 3, half consist of drum beats you can use to introduce variations on grooves -- with fills, alternate patterns and numerous other innovations. And the remaining 1,000? Guitarists and bass players will find bass lines, chord progressions, guitar and keyboard riffs designed to support and enhance the performance of the singer/songwriter.
In addition to loops, Jam Pack 3 contains more than 50 software instrument presets you can use to perform rhythm and backing tracks with a keyboard in a variety of styles -- from rock to alternative to metal to country to folk and to blues.
New loops -- Build…read moreunique tracks with loops for rock, blues, metal, jazz, and country songs. Foundation elements include more than 1000 loops of drum beats and fills and 1000 more bass lines, guitar and keyboard riffs, and chord progressions.
Rhythm Kits -- Play a variety of new software drum kits, covering everything from jazz brushes to classic 1970s studio sound to heavy metal. Rhythm Section also includes a wide range of percussion sounds like congas, bongos, shakers and more. You'll even find sets of mallets, including a steel drum band.
Basses -- Choose from new, fully playable acoustic (including an 'unplugged' acoustic bass guitar) and electric basses covering some of the most popular studio tones, from the Motown sound, to 1960s pop or progressive and unplugged rock.
Guitars -- Using your keyboard, you can strum, pick and perform more than 10 playable guitars and other stringed instruments, including a bluegrass banjo, an blues acoustic guitar, a dobro and three new electric guitars, with harmonics and power chords. Jam acoustic or electric, from fiery leads to rhythmic strumming. read less