The number of musical instruments available on the iPhone has increased dramatically since Apple released their SDK for developers (watch this blog for a iphone instrument roundup soon!). Before this, most virtual instruments could only be run on a Jailbroken iPhone.

The complexity of some of these new instruments (like the amazing soon-to-be released iphone synth ) is getting astounding, but a Japanese band called Denki Groove has used some fairly simple apps on jailbroken phones & ipods to do a fantastic version of the song “Smoky Bubbles”.

Here’s a video of the performance:

You can get a copy of their excellent CD as an import from Amazon .

The apps that they used for the song are:

BeatPhone (Drums)

PocketGuitar (Bass and Guitar)

Pianist (Keyboards)

iPhone Synth (Synthesizer)

I for one think that the iPhone is opening up a whole new area of very portable music generation and look forward to the many more apps that will be available.Â Also, check out the official Denki Groove website.

Have you got any iPhone music that you’ve made? if so, tell us!