MASSIF is the first hiking calculator by and for junglists. It is a command line utility that helps you plan hikes by approximating the duration of your route and generating a playlist of jungle and drum & bass music to match. Planning a hike with MASSIF requires that you know the following:

• Length of your route
• Your average hiking speed
• Ascent during your route
• Terrain of your route
• Weather conditions
• Weight of your pack
• Whether or not you're a junglist

Based on these parameters MASSIF will use generally accepted heuristics, such as Naismith’s Rule, along with Aitken corrections for terrain and ascent to calculate an approximate duration for the hike. It will then present the option of generating an accompanying playlist. Track selections are currently based on the Top 100 Most Wanted Jungle / Drum & Bass Records Released in 1994-1995 based on Discogs data from August 17, 2010. At the moment the database contains 12 hours 57 minutes 23 seconds of music.