Partial install of UbuntuStudio possible?

No need to do a complete reinstall. Just install the following package:

ubuntustudio-desktop

Make sure to have at least 900 MB of free disk space on your root (/) partition to install the ubuntustudio-desktop package

$ sudo aptitude install ubuntustudio-desktop
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
The following NEW packages will be installed:
  alacarte apmd app-install-data-partner apport-gtk{a} brasero capplets-data{a} checkbox{a} checkbox-gtk compiz compiz-core{a}
  compiz-fusion-plugins-extra{a} compiz-fusion-plugins-main{a} compiz-gnome{a} compiz-plugins{a} compiz-wrapper{a} compizconfig-backend-gconf{a}
  computer-janitor{a} computer-janitor-gtk desktop-file-utils{a} devicekit-power{a} dmz-cursor-theme{a} doc-base{a} docbook-xml{a} eog evince
  evolution-data-server{a} evolution-data-server-common{a} file-roller firefox-3.5-gnome-support{a} firefox-gnome-support gcalctool
  gconf-defaults-service{a} gconf-editor gdebi gdm gdm-guest-session gedit gedit-common{a} gnome-about{a} gnome-accessibility-themes gnome-app-install
  gnome-applets{a} gnome-applets-data{a} gnome-bluetooth gnome-codec-install gnome-control-center{a} gnome-desktop-data{a} gnome-disk-utility
  gnome-doc-utils{a} gnome-media{a} gnome-media-common{a} gnome-netstatus-applet gnome-nettool gnome-network-admin gnome-panel{a} gnome-panel-data{a}
  gnome-power-manager gnome-screensaver{a} gnome-session{a} gnome-session-bin{a} gnome-session-canberra gnome-settings-daemon{a} gnome-system-monitor{a}
  gnome-system-tools{a} gnome-terminal gnome-terminal-data{a} gnome-themes gnome-themes-selected{a} gnome-user-guide{a} gnome-utils gstreamer0.10-alsa
  gstreamer0.10-plugins-base-apps gstreamer0.10-pulseaudio{a} gstreamer0.10-tools{a} gtk2-engines{a} gtk2-engines-murrine gtk2-engines-pixbuf{a}
  gucharmap gvfs-fuse ibus ibus-gtk ibus-m17n ibus-table indicator-applet{a} indicator-messages{a} jockey-gtk language-selector libanthy0{a} libapm1{a}
  libatspi1.0-0{a} libbeagle1{a} libbrasero-media0{a} libcairo-perl{a} libcairomm-1.0-1{a} libcamel1.2-14{a} libcanberra-gtk-module{a}
  libcanberra-gtk0{a} libcanberra-pulse{a} libcompizconfig0{a} libcryptui0{a} libdbusmenu-glib0{a} libdbusmenu-gtk0{a} libdecoration0{a}
  libdevkit-power-gobject1{a} libebackend1.2-0{a} libebook1.2-9{a} libecal1.2-7{a} libedata-book1.2-2{a} libedata-cal1.2-6{a} libedataserver1.2-11{a}
  libedataserverui1.2-8{a} libegroupwise1.2-13{a} libevdocument1{a} libevview1{a} libexempi3{a} libfreezethaw-perl{a} libgconfmm-2.6-1c2{a}
  libgdata-common{a} libgdata-google1.2-1{a} libgdata1.2-1{a} libgdata5{a} libgdict-1.0-6{a} libgdu-gtk0{a} libglademm-2.4-1c2a{a} libglew1.5{a}
  libglib-perl{a} libgmime-2.4-2{a} libgnome-bluetooth7{a} libgnome-desktop-2-11{a} libgnome-media0{a} libgnome-window-settings1{a}
  libgnome2-canvas-perl{a} libgnome2-perl{a} libgnome2-vfs-perl{a} libgnomekbd-common{a} libgnomekbd4{a} libgnomekbdui4{a} libgnomevfs2-extra{a}
  libgtk2-perl{a} libgtkhtml2-0{a} libgtkmm-2.4-1c2a{a} libgtksourceview2.0-0{a} libgtksourceview2.0-common{a} libgucharmap7{a} libgweather-common{a}
  libgweather1{a} libibus1{a} libkpathsea4{a} libm17n-0{a} libmetacity0{a} libmldbm-perl{a} libnautilus-extension1{a} libnet-dbus-perl{a} liboobs-1-4{a}
  libotf0{a} libpanel-applet2-0{a} libpango-perl{a} libpangomm-1.4-1{a} libpolkit-gtk-1-0{a} libpoppler-glib4{a} libprotobuf3{a} libpulse-browse0{a}
  libpulse-mainloop-glib0{a} librarian0{a} libspeexdsp1{a} libtelepathy-glib0{a} libtie-ixhash-perl{a} libtotem-plparser12{a} libtrackerclient0{a}
  libunique-1.0-0{a} libuuid-perl{a} libxml-twig-perl{a} libxml-xpath-perl{a} linux-headers-2.6.31-9-rt{a} linux-headers-rt linux-rt-headers-2.6.31-9{a}
  m17n-contrib{a} m17n-db{a} mesa-utils{a} metacity{a} metacity-common{a} mousetweaks{a} nautilus{a} nautilus-data{a} nautilus-sendto nautilus-share
  obexd-client{a} padevchooser paman{a} paprefs{a} pavucontrol{a} pavumeter{a} pkg-config{a} pulseaudio{a} pulseaudio-esound-compat{a}
  pulseaudio-module-bluetooth pulseaudio-module-gconf{a} pulseaudio-module-udev{a} pulseaudio-module-x11{a} pulseaudio-module-zeroconf{a}
  pulseaudio-utils{a} python-fstab{a} python-gnome2{a} python-gnomeapplet{a} python-gnomecanvas{a} python-gst0.10{a} python-gtkhtml2{a}
  python-gtksourceview2{a} python-ibus{a} python-libxml2{a} python-notify{a} python-pyorbit{a} python-rdflib{a} python-rsvg{a} rarian-compat{a} rss-glx
  screen-resolution-extra{a} seahorse sgml-data{a} software-properties-gtk{a} ssh-askpass-gnome synaptic{a} system-config-printer-gnome
  system-tools-backends{a} tango-icon-theme tango-icon-theme-common totem totem-common{a} totem-mozilla{a} totem-plugins{a} ttf-arabeyes
  ttf-sazanami-gothic ttf-sazanami-mincho ubuntu-docs ubuntu-system-service{a} ubuntustudio-default-settings ubuntustudio-desktop
  ubuntustudio-icon-theme{a} ubuntustudio-look{a} ubuntustudio-menu ubuntustudio-screensaver ubuntustudio-sounds{a} ubuntustudio-theme{a}
  ubuntustudio-wallpapers{a} update-manager update-notifier usplash-theme-ubuntustudio vino whois{a} xscreensaver-data{a} xscreensaver-gl{a} xsltproc{a}
  xulrunner-1.9.1-gnome-support{a} yelp{a} zenity{a}
The following packages will be REMOVED:
  esound{a}
0 packages upgraded, 255 newly installed, 1 to remove and 9 not upgraded.
Need to get 91.7MB of archives. After unpacking 886MB will be used.
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