I've been working on an online chord practice application for some time, and would be very interested in your thoughts and comments, for further development..
http://www.chordpractice.com

I'm thinking of adding scales and also a field where one can paste a song with lyrics and chords and be able to transpose the chords...

All feature requests and comments are welcome!

I'll be adding more chords the next few days... now it's time for bed tho ^^

I looked at your site earlier. It's undoubtedly a nice hobby project for someone interested in both web programming and music, but I could not work out what to do with it, and quickly lost interest. The user interface is not exactly intuitive. Clicking the Play button did not produce any sound. I also don't quite see the point of practising chords with a computer. A good old-fashioned etude book with fingering will probably be far more useful.

BIG update! Now with playlists! check it out - http://www.chordpractice.com

For you who are making music, the random chord sequence generator might be fun!

You know I hope I am not talking out of turn here.

Playing chords is actually serious business for many people. Its actually not that easy to play a chord in any key at a moments notice without any sheet music in front of you and play it well. (usually you don't have sheet music but only chord changes for this type of thing.)

The only thing is, as a piano player you're not just playing a chord, your a playing it in a way so that it moves smoothly/nicely from one chord to the next. Also you are thinking what notes of the chord to play and which notes to omit, chord substitions etc etc. And all this has to be done as quickly as possible, in any key.

It might be better to practice instead not just one chord isolation but the ii V i pattern.

I also think that what you really need is someone to show you how to put the ii v i pattern together in 1 key, and the learn every other key on your own. When you're playing like this you wont have any picture in front of you, or notes, so its best to learn this type of thing without any notes or diagrams or whatever else. Its also best to learn this type of thing so you can play it as quickly as possible in any key.

Anyway just my 2 cents, I am not exactly an expert in the topic. I am sure some will disagree with the above. Kind of an interessting topic as my piano teacher makes me practise/drill ii v i patterns in every key.

b.t.w. I like the fact that you have the maj7, min7 and dominant7 chords listed

Stan makes a very good point. Learning individual chords is similar to learning spelling. You may be able to spell lots of words correctly but that doesn't mean that you can put them in sentences correctly or write a novel. Individual chords may have inherent potential meaning but the exact meaning is not known until put into context in sentences and paragraphs as well as spoken or printed inflections.

Also, even in the process of learning certain standard harmonic patterns (II V I; IV V I; I VI II V I; etc.) one needs to take into account harmonic rhythm -- differences in harmonic rhythm help to determine if II V I or IV V I is cadential or simply a movement within the phrase.

Well, so much for my 2 cents (does that make the pot 4 cents now?)

Scott

Interesting discussion. I think I understand what you mean, though I am not very familiar with these patterns you speak of. And I don't know if it's even worth the effort to somehow implement on the site.

Anyhow....
Sound implemented! So, now you can jam with it!

http://www.chordpractice.com

I really like the roman notation of chord progressions now after reading up on the subject, thanks Stan and Scott for introducing me to it!

As I understand it, you can write any chords with the roman notation instead, right? Like

iii7-VIIdim-IVaug-II6-VIsus4