CYHSY @ SOUTH STREET SEAPORT (more)
CYHSY @ South Street Seaport

I've got more dates. Super Furry Animals, Rhett Miller, Moe, Buck 65, Laurie Anderson, etc...

SOUTH STREET SEAPORT
6-02 - Super Furry Animals
7-14 - Dave Alvin & The Guilty Men, Chatham County Line
7-28 - Richard Hawley
8-04 - Hot Chip
8-18 - The Box Tops with Alex Chilton

CENTRAL PARK SUMMERSTAGE
6-13 - Moe
6-17 - Rhett Miller, Ollabelle, Teddy Thompson
6-23 - Refugee All Stars (of Sierra Leone)
6-25 - Feist, Jason Collett, Buck 65
7-01 - Ska Cubano
7-02 - Seu Jorge, Jose Gonzalez, Alex Cuba Band
7-13 - Ani DiFranco
7-16 - Amadou & Mariam, Daby Toure
7-23 - Konono No. 1
7-26 - Fiona Apple & Damien Rice
7-30 - Lady Sovereign, Todd w/ Karsh Kale and Realize, My Pet Dragon
8-03 - New Pornographers, the Frames, Calexico
9-05 - Ben Harper and the Innocent Criminals, Damian Marley
9-06 - Ben Harper and the Innocent Criminals, Damian Marley
9-28 - Clap Your Hands Say Yeah

CELEBRATE BROOKLYN! in PROSPECT PARK
6-15 - Maceo Parker (opening night)
6-18 - Laurie Anderson
7-06 - Broken Social Scene
7-01 - Angelique Kidjo
7-09 - Ralph's World
7-13 - Yo La Tengo
7-27 - Philip Glass
8-03 - Bill Frisell
8-04 - Los Amigos Invisibles
8-06 - King Sunny Ade & His African Beats

TOMPKINS SQUARE PARK
6-11 - Soap, World Inferno Friendship Society
8-20 - Soap

CASTLE CLINTON
7-13 - Okkervil River
7-27 - The Hold Steady

WAGNER PARK
7-20 - Shemekia Copeland

WORLD FINANCIAL CENTER
4-25 - Randy Weston African Rhythms Quintet & Gnawa Master Musicians of Morocco
5-04 - PlayVision: Rodney Graham - Reverie Interupted by the Police
5-17 - PlayVision: Christian Marclay feat. Elliot Sharp trio + Okkyung Lee Trio
5-24 - PlayVision: The Books
5-27 - PlayVision: Rodney Graham - Reverie Interupted by the Police
6-04 - Bang on a Can Marathon w/ Amiina, Matmos, and Alarm Will Sound
6-13 - Eels & Smoosh
6-20 - Son Volt

MADISON SQUARE PARK
6-21 - Meshell Ndegeocello
6-28 - Glen Phillips (Toad the Wet Sprocket)
7-05 - Rhonda Vincent & The Rage
7-12 - Abigail Washburn

DAMROSH PARK
8-19 - Percy Sledge

MARCUS GARVEY PARK
8-26 - Sonny Fortune

UPDATE: I added a few dates from your comments and from Gothamist.