Paul Shaffer

In the 3:20's of this video, Paul Shaffer can be seen playing a Hammond B3 organ.

At 22:18 in this video, Paul Shaffer can be seen playing a Kurzweil K2000 V3.

24:13 - choir sound & string sound

At 8:59 in this video, Paul Shaffer can be seen playing his Kurzweil K250.

In this image Paul Shaffer can be seen using a Roland Fantom-X7.

At [15:42] Paul Shaffer plays sound that was used on the Late Show with David Letterman opening theme. [I-61 2-way Slide]

At [11:25] talks about meeting Robert Moog and plays some bass sounds at [12:11]

At [18:46] Paul Shaffer shows Vintage Keys module "It's got some cool sounds that I do use. And I've got it set so that it's MIDI'd all the time from.. From this old Kurzweil (K250)". Module was used for Aerosmith - Cryin [19:12]

At [21:06] Paul Shaffer talks about Grand piano and how it's MIDI'd to Kurzweil PC2R.

In the screenshot is seen Paul Shaffer playing synthesizer Roland JD-800 during the first Late Show With David Letterman show in 1993. Above white logo/text on the left side, an angled system and patch controls can be seen which matches with JD-800.

In the source, show's music technical coordinator tells about the gear used on the show, of which Roland JV-1080 is mentioned.