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Robert Todd Lincoln: Harbinger of Presidential Death

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When Abraham Lincoln's son arrived back in Washington in April 1865, his parents invited him to go see Our American Cousin at Ford's Theater with them. The young Civil War officer was so exhausted after his journey that he begged off so he could get a good night's sleep. That night, of course, John Wilkes Booth shot Lincoln's father, and Robert Todd was with the celebrated president when he passed away the next morning.

By 1881, Lincoln's political lineage and prominence as a lawyer qualified him for a national office, and he became Secretary of War under the newly inaugurated James A. Garfield. That July, Lincoln was scheduled to travel to Elberon, New Jersey, by train with the President, but the trip never took off. Before Lincoln and Garfield's train could leave the station, Charles Guiteau shot Garfield, who died of complications from the wound two months later.

Oddly, that wasn't all for Lincoln, though. Two decades passed without a presidential assassination, but Lincoln's strange luck reared its head again in 1901. Lincoln traveled to Buffalo at the invitation of President William McKinley to attend the Pan-American Exposition. Although he arrived a bit late to the event, Lincoln was on his way to meet McKinley when anarchist Leon Czolgosz shot the president twice at close range.

Following these three bits of bad luck Lincoln refused to attend any presidential functions. He dryly noted that there was "a certain fatality about the presidential function when I am present."

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New AI-Driven Music System Analyzes Tracks for Perfect Playlists
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Whether you're planning a bachelorette party or recovering from a breakup, a well-curated playlist makes all the difference. If you don't have time to pick the perfect songs manually, services that use the AI-driven system Sonic Style may be able to figure out exactly what you have in mind based on your request.

According to Fast Company, Sonic Style is the new music-categorizing service from the media and entertainment data provider Gracenote. There are plenty of music algorithms out there already, but Sonic Style works a little differently. Rather than listing the entire discography of a certain artist under a single genre, the AI analyzes individual tracks. It considers factors like the artist's typical genre and the era the song was recorded in, as well as qualities it can only learn through listening, like tempo and mood. Based on nearly 450 descriptors, it creates a super-accurate "style profile" of the track that makes it easier for listeners to find it when searching for the perfect song to fit an occasion.

Playlists that use data from Sonic Style feel like they were made by a person with a deep knowledge of music rather than a machine. That's thanks to the system's advanced neural network. It also recognizes artists that don't fit neatly into one genre, or that have evolved into a completely different music style over their careers. Any service—including music-streaming platforms and voice-activated assistants—that uses Gracenote's data will be able to take advantage of the new technology.

With AI at your disposal, all you have to do as the listener is decide on a style of music. Here are some ideas to get you started if you want a playlist for productivity.

[h/t Fast Company]

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