My guess is that it is only a matter of time that someone will want Riffstation. So I will link to it here. It tells the tempo of the song, the chords and has great playback slowdown features. It is really a nice tool to have in the toolbox!
INSTALL INSTRUCTIONS
Download zip package.
Unzip to a spot on your drive and leave the contents in the folder.
I put my copy in: C:\Program Files (x86).
No install needed!
From within the folder, create a shortcut to “Riffstation.exe”.
Ha I bought it donkeys years ago and like you said its a great tool to have in the box. Not always 100% accurate but enough to get you going. Think my copy is the original freebie I’ve had it that long !
Yeah,
At times it doubles the BPM on the song. What I like about it as opposed to the OP link is that you feed it a real mp3 or song file. Whereas as far as I can tell the link at the top is a reference to a database of song info?
I have also seen Riffstation miss chords. In some or most cases it tags the bass chord and not the actual chord. So an E7 turns into an E. But these things are minor and the tool is still great. I am sure other tools are not 100% accurate either?
Yeah never clicked on it but I had some vague memories that you had some skin in that game ! Life is cyclical and the world is the size of a pea.
FWIW for anyone reading two old gits reminiscing, one of the great feature of Riffstation is capo application (to find those easy chord shapes) and Key changes so you can sing in your range !
Tim - Could be it comes up every year or so and I’ve been here a decade and have had Riffstation since circa 2015 or there about. 
