Session Shed User Guide

Session Shed

User Guide


Welcome to Session Shed, an easy to use, sample-based sequencer for creating drum loops/beats (although there is also a simple bass editor included too!). As with all software there is a learning curve, so please use this user guide to discover what is possible.


Many buttons have multiple functions and/or change their function dependent on what is visible on screen, and what you are edting.


Please also keep an eye out for updates which will include additional instruments and editing functionality.


SD Card, Folders & Files


  • Tap phone's menu button to access file functions.
  • All files are stored in SDCard/Session Shed (subfolders are created for Projects, Samples and Exports)
  • Double tap to open a stored project file (if displayed).


New - start a new project

Save... - save project to SD Card

Export WAV - exports Stereo WAV file (using project name) to SD Card

Open - load project from SD Card


Exiting Session Shed


  • Tap phone's back button, followed by 'OK' in warning dialogue, to close and exit.


Common Functions


  • Flick or drag to scroll left/right in grid editor and mixer (and up/down in grid editor).
  • Pinch zoom - grid editor has horizontal zoom (pinch in right half of display) and vertical zoom (pinch in left half of display). Miixer only has horizontal zoom.
  • Select bar as playback start point or for editing by tapping the ruler - selected bar highlights yellow.


Screen Layout

  • Main Buttons: Loop | Play | Rewind | Grid Editor | Mixer | Pads | Clock
  • Ruler: Each bar/measure has its own ruler 'button' with quick editing functions:
    • '-' delete bar - affects both drum and bass tracks
  • '+' insert new bar
  • 'D' duplicate data - copies data to next bar (iif last bar, adds new bar first)
    • Grid Editor - the majority of the available screen space, for note data editing
    • Traditional mixer layout for adjusting levels and setting pan.



    Main Buttons



    • Single tap toggles loop mode on/off.
    • Double tap toggles contextual help on/off.


    • Single tap to start/stop playback.
    • Currently playing bar's ruler button is highlighted 'blue'.


    • Rewinds to currently selected bar or loop start if loop is active.

    Grid Editor

    • Single tap to activate editor.
    • Double tap (if already in grid editor) to toggle drum labels on/off.
    • Long press to toggle between 'blocks' view and grid editor.


    • Single tap to activate mixer.
    • Double tap to toggle labels on/off.


    • play/edit/ load drum samples.


    • Long press to toggle between drum/bass editors.
    • Double tap (if in grid editor) to activate velocity editing (also time signature, tempo & quantization - see below for full details).
    • Single tap (if in velocity edit) toggles scroll on/off.


    Pads / Sample Editor

    • 16 playable drum pads with visualisation of drum samples.
    • ADSR editing - drag to trim sample start/end points and to edit ADSR values.
    • Load samples from Internal memory (presets) or from SD Card "../Samples/USER SAMPLES".



    • Tap ADSR button to activate editing.
    • Tap '?' to view draggable regions.
    • Drag to edit ADSR values and sample start/end points.

    Sample Loading

    • Tap 'Load' button to launch browser
    • Tap 'blue' text in top info bar to toggle between INTERNAL/USER samples
    • Tap a folder/file to select/audition.
    • Long press a drum pad to apply selected sample to it.


    Loop Mode


    With Loop active, the loop range is indicated by the ruler Buttons becoming grey.

    • Set loop start bar by tapping left half of a ruler button.
    • Set loop end bar by tapping in right half of aruler button.


    NOTE: avoid '-' '+' & 'D' as these are still active in loop mode!


    Note Editing


    • Single tap to enter/delete notes.
    • Long press to activate drag editing.


    Velocity, Quantization, Tempo and Time Signature


    • Double tap clock to open/close note velocity editor.
    • Single tap on the 'Edit Note Velocities' text to cycle through other editing functions.



    • Double tap clock to open velocity editor (if already in grid editor).
    • Select which drum part(s) to edit with single tap - track(s) becomes highlighted and velocity values are displayed.
    • Drag to set values.
    • Double tap to insert new notes.


    NOTE: to avoid conflicts between velocity editing and normal display scrolling (as both use drag), scrolling is disabled by default in this mode. Instead you can use the arrows that are now displayed in the bar's ruler button to move left/right by one bar at a time. You can also single tap the clock to toggle scrolling on/off (and velocity editing off/on).



    • Tap 'Set Beat' to cycle through/select which beat to quantize.
    • Tap left/right arrows to set desired quantization (min=1/max=9).
    • Tap drum parts (labels) to set inactive/active. default is all parts active.


    Time Signature

    • Tap upper arrows to set number of beats per bar(min=1/max=12), and lower arrows to set 4 or 8 for simple/compound time.



    • Tap left/right arrows to adjust tempo.

    (increments of +/-1 ... decimal/fractional tempo coming in future update)


    Block editor

    Use the block editor to quickly copy and paste, to create loops or to layout longer song structures.

    Launch by long press to grid editor button. Ruler buttons just show the bar number and bars are displayed as plain rectangles. Empty bars (no note data) are black, and bars that contain notes are shaded grey.


    Available Editing Functions:

    (buttons at bottom of screen show possible editing functions)


    Ruler tapped - ruler button and drum/bass parts are highlighted. Button functions allow inserting (before/after) and deleting of bars.

    Drum/Bass bar tapped - becomes highlighted. Button functions to clear note data and group bars (if multiple adjacent bars are selected) to create 'blocks'.

    Block tapped - becomes highlighted. Button functions to edit block size or delete.


    Copy/Paste (bars and blocks)

    • Double tap a bar or block to copy to clipboard.
    • Long press to paste into desired bar.


    NOTE: when pasting blocks, there must be sufficient empty bars available for the paste to take place. Paste does not over-write existing data. You cannot copy/paste between bass/drum tracks... as it makes no sense.


    Block label editing

    • Long press on a block to launch keyboard for label editing


    NOTE: bars cannot be labeled ... yet ...


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