Digidesign today for its Pro Tools|HD and LE systems. The software expands the company's audio and MIDI feature set to deliver tempo-dependent audio placement, tempo-dependent automation, graphic tempo editing, precise control of meter changes, MIDI step input, enhanced support for instrument plug-ins, MIDI Detective, and Beat Detective LE. Pro Tools 6.7 also adds true cross-platform parity for simplified session transfer with major MIDI functionality enhancements to Windows. Pro Tools 6.7 requires a Digidesign-approved Pro Tools|HD, Pro Tools|HD Accel, Digi 002, Digi 002 Rack or Mbox system running on Windows XP or Mac OS X. It is a free update to owners of Pro Tools TDM v6.4 or later and $175 upgrade for others. The download will be available early next month on the Web and from local dealers in mid-November.