Eric Persing has had a unique and influential relationship with Roland Corp for two decades. He started as a product demonstrator in 1984, showing some of Roland's first MIDI instruments. He quickly became involved in the R&D side with Roland Japan, earning the title "Chief Sound Designer", and began contributing his design ideas, real-world studio experience and sound design expertise. Persing's skills have left their mark on countless classic Roland instruments.

He is the originator of many legendary Roland sounds that have become part of the vocabulary and lexicon of musical sound. These include the Factory D-50 sounds such as Fantasia, Soundtrack and Digital Native Dance, a majority of the JV/XP/XV series Classics, all the Factory JD-800 sounds, the original Juno "Hoover" sound and thousands of others.

Here is a partial list of the Roland instruments that Eric has contributed his sound design, sampling and design consulting skills:

Juno-106 Alpha Juno 1&2 JX-3P JX-8P JX-10 Jupiter 6 Super Jupiter D-50 D-550 D-110 D-10 D-20 D-70 MT-32 U-110 U-20 U-220 Sound Canvas JD-800 JD-990 JV-80 JV-90 JV-1000 JV-1080 JV-2080 XP-10 XP-50 XP-60 XP-80 XV-3080 XV-5050 XV-5080 Fantom JP-8000 JP-8080 S-10 S-220 S-50 S-550 S-770 S-760 S-750 MC-303 MC-500 MC-505 VP-9000 MSQ-700 MSQ-100 MKS-20 MKS-30 MKS-50 MKS-70 MKS-80 R-8 R-5 DR-660 DR-770 R-70 V-Drums V-Drums expansion board SRV-2000 DEP-5 RSP-550 R-880 SRV-330 SE-50 SE-70 VS-880 VS-1680 SR-JV series expansion boards SRX series expansion boards Sound Canvas Project series CD-ROM libraries Archives series CD-ROM libraries Composers series CD-ROM libraries

At the 43:33 minute mark, you can see a Roland Alpha Juno 2 on a keyboard stand.

Kate in the video says that she likes bass in this synth 1:12

In an article by Greg Scarth for Attack Magazine, Huxley is shown using a Roland Alpha Juno-2 in his studio.

In an Instagram post, Poldoore showcases a Roland Alpha Juno-2 prominently featured at the front of his setup during a collaboration session.

Here the Roland Alpha Juno-2 can be in seen in Gaspard's studio

Hiver showcases their Roland Alpha Juno-2 synthesizer in an Instagram post, highlighting it as part of their studio setup.

In an Instagram post by Georgy Ambartsumyan, the Roland Alpha Juno-2 can be seen on the left, confirming its use by Permsky Kray.

"The synth sound from ””It Will Never Be Alright” comes from an 80s Roland Alpha Juno 2 and the PG-300 programmer."

We used this synthesizer for almost all of our songs, in particular in our live album from the Dreamport studio. They have a rich and bold sound, what we need for our music, the spirit of the era. It has built-in filters that allow you to achieve a wide variety in sound, besides, I really like using it with guitar pedals, it sounds stunning.

Martijn de Vries lists the Roland Alpha Juno-2 among his studio equipment on the Elevated Music website, highlighting its role in his songwriting and dance music production.

In a photograph shared on his Instagram account on November 20, 2021, keyboardist Lamont Neuble is depicted utilizing the Roland Alpha Juno-2 synthesizer. The image, part of a post expressing his enthusiasm for returning to his passion and reconnecting with colleagues, effectively confirms Neuble's use of this specific musical instrument.