Revealed Recordings has announced the release of Progressive Arps Vol. 2, a collection of 50 MIDI and 160+ arp loops.
They say:
Each MIDI has multiple WAV loop expressions, labeled by key, so you can test out a variety of melodic melodies right away. Or, you can take your favorite MIDI melodies and reconstruct them exactly how you want using your preferred presets.
Price: €19.95. Available for free for the first 30 days with a Pro Subscription.