Wow! How to extract sheet music from YouTube videos. “Picking out the different parts of a song after it’s been recorded is like naming every ingredient of a cooked dessert: It’s difficult. With its new algorithmic approach, Chordify is the latest to attempt the dissection. The service not only displays sheet music for locally uploaded songs, but for a wide selection of streaming music found online.”

Did you know there were online archives of museum lectures? I had no idea. Nifty!

More Wow: Tokyo has created the first solar panel feasibility database in Japan. “The metropolitan government spent ¥50 million to create the database. Aerial photos were taken of about 2.6 million buildings across all areas of Tokyo, except outlying islands. The photos were then turned into 3-D images. By analyzing the heights of surrounding buildings and trees as well as angles of roofs, the amount of exposure to the sun’s rays for each roof was calculated. If a database user inputs an address and points a cursor to an image of a relevant roof, the database will show an estimated amount of electricity generation and indicate the adequacy of solar panels through a three-level, color-coded system.”

It’s not even Easter yet and we are still getting silly Google Easter eggs.

More Google: Google is being sued for data-mining students’ e-mail. “The thing is, Google’s own court filings in the California suit contradict Bout’s assertion that his employer [Google] doesn’t use data mining to target ads to Apps for Education users unless they opt to receive them, according to student-data-privacy experts, Education Week reports.”

If this is true, this is very bad: NSA says that tech companies knew about its data collection. “Rajesh De, the spy agency’s general counsel, said that the companies knew that the NSA was collecting data from them. This revelation comes after months of repeated — and very similar — denials by the tech companies.”

Apparently most ATMs are going to stay with Windows XP after Microsoft stops security updates. Um, yuck.

Speaking of security, Ars Technica has a rather scary writeup of 10,000 compromised Linux servers which are serving up blizzards of spam and malware.

Firefox 28 has launched. “Without Windows 8 support, the new features in today’s release are relatively minor. They include support for VP9 video decoding and the OS X notification center, so that notifications from web apps can now appear there. Also new is support for volume control for HTML5 audio and video and support for WebM Opus audio.”

This is kind of cool: Turn a Twitter handle into a chat room with Nurph.

Bing has tweaked its map directions. Good morning, Internet…

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