http://puredata.info/downloads/purest-json
http://elinux.org/RPi_VerifiedPeripherals#USB_Sound_Cards
A post about installing USB sound cards
http://www.raspberrypi.org/phpBB3/viewtopic.php?t=20866
And another – with better detail
http://www.jackenhack.com/raspberry-pi-usb-audio-quality-problems/
http://raspberrypi.stackexchange.com/questions/3888/how-to-install-usb-sounds-adapter
Griffin imic with PD
http://iamthemightyjungulator.blogspot.com/2012/12/raspberry-pi-usb-sound-into-pure-data.html
example video
PD extended…
http://log.liminastudio.com/writing/tutorials/how-to-build-pd-extended-on-the-raspberry-pi
and this update
http://puredata.hurleur.com/sujet-8036-build-extended-raspberry-raspbian-wheezy-armf
Running PD on a headless RP
http://guitarextended.wordpress.com/2012/08/28/running-pd-on-a-headless-raspberry-pi/
Here’s a comprehensive install script for PD-extendended from 9/2012
http://iamthemightyjungulator.blogspot.com/2012/09/running-pd-extended-on-raspberry-pi.html
and another
http://puredata.info/downloads/pd-extended-0-43-3-on-raspberry-pi-raspbian-wheezy-armhf
You can use Arduino with a GSM/GPRS board. How difficult it would be to access a phone’s serial output directly?
These projects may be outdated – Other options include: Twilio or IFTTT
Bluetooth to Midi converter:
By Mike Szczys at Hackaday
http://hackaday.com/2011/07/09/turn-any-bluetooth-device-into-a-midi-controller/
Cheap 2-Way Bluetooth Connection Between Arduino and PC
By Techbitar at Instructables
http://www.instructables.com/id/Cheap-2-Way-Bluetooth-Connection-Between-Arduino-a/?ALLSTEPS
Arduino to Android using Bluetooth
By Brian Jepson at Make
http://blog.makezine.com/2012/03/19/bluetooth-4-0-from-arduino-to-iphone-no-jailbreaking-no-mfi/