Electronic dance music has a longer history than most people realize, starting in 1844 with Samuel Morse’s second telegraph message, “S.O.S. (Dubstep Remix).” Get the message with this deal to the Wavefront Music Festival at Montrose Beach. For $99, you get one three-day pass for general admission (up to a $189.99 value). The pass is valid from noon to 11 p.m. on Friday, July 5, and Saturday, July 6, and from 11 a.m. to 11 p.m. on Sunday, July 7.

For its second year in the Windy City, Wavefront Music Festival takes over the shores of Montrose Beach with electronic beats, ditties, and record spins from a dream team of DJ and house-music acts, with more to be announced. For three straight days, fireworks and grid-punishing light shows illuminate the skies and throw wayward ghost ships off course as fans revel to throbbing progressive soundscapes from a slew of international dynamos.

Lineup (In Progress)

Benoit & Sergio: Rising DC DJs instill dance jams with sardonic wit in the vein of LCD Soundsystem

Caspa: London DJ, festival maven, and “the dopest ghost in town.”

Maya Jane Coles: UK house-music maestro and one of Rolling Stone magazine’s 25 DJs that Rule the World

Crookers: Italian electro-house DJ, producer of Dr. Gonzo with remix credits including Britney Spears and Lady Gaga

Guy Gerber: Israeli DJ creates shoegaze techno with live instrumentation

Nicolas Jaar: Deep-house DJ whose BBC Radio 1 Essential Mix was voted Radio 1’s Essential Mix of the Year 2012

Jamie Jones: Welsh DJ and producer of the UK Top 40 hit “Benediction”

Chris Lake: Scottish house DJ behind dance-chart hits such as “Carry Me Away” and “Only One”

Damian Lazarus: popular LA DJ and ace spinner of underground records

Rusko: British dubstep dynamo behind the hit “Cockney Thug”

Danny Tenaglia: 30-year veteran DJ, Grammy nominated for a remix of Depeche Mode’s “I Feel Loved”<p>