It is based on tracker software but has more features and fewer limitations. It also utilizes graphics to show musical.

Changes in v 1.9.33:

• Pitch glide between notes. Implemented for the Pd instrument, the sampler instrument and all the Physical modelling instruments.
• Edit pitches with mouse
• Automatically make current track wider
• Show Resize cursor when its possible to resize track
• Mouse: ctrl: slows down, lshift: limit horizontal, lextra: limit vertial
• Sampler instrument: Fix saving loop on off button state
• Made MENU button open block configuration (left meta is often unavailable)
• Made VOLUME/PLAY/STOP/MUTE keys configurable in keybindings.conf
• Fixed memory corruption in blocklist when name of block was longer than 20 (!)
• Use standard paths for LADSPA plugins if LADSPA_PATH is not set
• Give message if a plugin generates abnormal signals, plus zero the signal.
• menues: Be more intelligent about which program to open keybindings.conf/menues.conf/externals_list.txt with.
• pd: Upgrade libpds to latest version (Use system clipboard to store cut/copy/paste data (to cut/copy/paste between different pd instances))
• Fix MMD loader
• Note play indicator visual improvement (blinking circle)
• Enable volume up/volume down/mute/play keyboard buttons
• Button for setting random effect values.

Visit: Radium - The Music Editor