Solo star and former Grateful Dead keyboardist Bruce Hornsby will be among the many acts to perform at this year's Gathering of the Vibes, according to Terrapin Presents, the organizer of the summer music festival.

Legendary African drum virtuoso Babatunde Olatunji, masterful jazz guitarist John Scofield, and groove-jazz trio Soulive are also among the notable acts that have been confirmed so far. Bass freak Les Claypool will return this year, this time with his Fearless Flying Frog Brigade, as will groove funkers Deep Banana Blackout, Merl Saunders & His Funky Friends, and next-generation Vermont jammers Strangefolk.

The sixth installment of the Vibes, an annual tribute to the memory of jam icon Jerry Garcia, will take place on a 500-acre farm in Red Hook, N.Y., from June 29 to July 1. The first round of advance tickets goes on sale April 9. Complete information about on-sale dates and passes is available online at www.gatheringofthevibes.com or toll-free at 866-TERRAPIN (837-7274).

Additional acts and information will be announced in the coming weeks.