Using ABC Notation for Band Backing (Offline)

This guide outlines a practical, offline‑ready workflow for using ABC notation to generate drum and bass backing tracks for live band performance. It focuses on the components you need and how to get them working together efficiently.

1. Required Components

ABC editor (EasyABC or any text editor)
abcMIDI tools for converting ABC → MIDI
MIDI playback (software synth, DAW, or hardware module)
Audio output to the PA or monitor system

Tip: All components work fully offline once installed.
Draw The Dots does not work offline.

2. Basic File Structure

Use one ABC file per song, with at least two voices:

DRUMS — percussion on MIDI channel 10
BASS — melodic bass line on a normal MIDI channel

Example Layout

Strange ABC Notation Percussion Trick We have to write drum parts this way because ABC uses MIDI note numbers, not real drum notation.

X:1
T:Example Backing
M:4/4
L:1/16
Q:1/4=170
K:C

V:DRUMS clef=perc
%%MIDI channel 10
[V:DRUMS] C,,8 D,,8 | C,,8 D,,8 |

V:BASS
%%MIDI channel 1
[V:BASS] C,4 E,4 G,4 E,4 | C,4 E,4 G,4 E,4 |

Note: Drum note letters (e.g., C,,) trigger different kit pieces depending on your drum sound source.

3. Workflow Options

3.1 EasyABC Workflow

Open the ABC file in EasyABC.
Check playback using its built‑in MIDI output.
Export to MIDI when ready.
Play the MIDI directly or load it into a DAW.

3.2 Text Editor + abc2midi

Edit the ABC file in any text editor.
Convert using: abc2midi song.abc -o song.mid
Load the MIDI into your DAW or hardware module.

4. Live Setup

Laptop with ABC files and MIDI tools
Audio interface to route backing to PA
Optional click track routed to in‑ears only
Optional footswitch for hands‑free start/stop

Setlist Tip: Number your files (e.g., 01_Song.abc) for fast navigation on stage.

5. Rehearsal Checklist

Confirm drum/bass balance with the live band
Check latency from MIDI to audio
Run the full set without internet or background apps
Keep backups of ABC and MIDI files

6. Quick Edits

Extend sections by duplicating bars
Simplify grooves by removing notes
Adjust tempo via the Q: line

Once your workflow is set, updating songs becomes a matter of editing a few lines of text and regenerating the MIDI.

Other Options

MIDI - Real Band - Part of Band in the Box (2021)

Appendix: Comparison of Backing‑Track Tools

Tool / Workflow	Needs Internet	Exports to MP3	Works on Smartphone	Requires Smartphone	Accurate Playback Engine	Notes
ABC + abcMIDI + DAW	No	Yes	No	No	Yes	Fully offline; text‑based; highly editable
EasyABC	No	No (MIDI only)	No	No	Yes	Good editor; uses abc2midi for playback
Draw The Dots	Yes	No	Yes	No	No	Excellent notation renderer; playback is simplified and not fully accurate
Band‑in‑a‑Box (2021)	No	Yes	No	No	Yes	Large library; auto‑arranger; commercial
RealBand (BIAB companion)	No	Yes	No	No	Yes	DAW‑style; integrates with BIAB tracks
Smartphone Drum Apps	Varies	Varies	Yes	Sometimes	Varies	Often limited; not ideal for full songs

Appendix: Taming General MIDI for Reliable Backing Tracks

MIDI is not audio. It is a set of instructions: which notes to play, when, how loud, and which instrument number to use. The actual sound comes from your synth, sound module, or software instrument. This appendix explains how to make those sounds predictable and stop your device from turning pianos into squeaky onions.

Key idea: ABC writes the instructions. Your synth provides the sound. General MIDI (GM) is the agreement between them about which instrument numbers mean what.

1. What General MIDI (GM) Actually Does

Program numbers: GM defines which instrument each program number represents.
Channel 10: Reserved for drums, with fixed note-to-drum mappings.
Consistency: Program 1 is always a piano; Program 34 is always an electric bass.

Program	GM Instrument	Typical Use
1	Acoustic Grand Piano	Default piano voice
33	Acoustic Bass	Jazz / upright bass
34	Electric Bass (finger)	Pop / rock bass lines
49	String Ensemble 1	Pad-like strings

Important: GM standardises which instrument number means what, but not the sound quality. A cheap synth and a high-end module will both call Program 1 "Piano", but they will not sound alike.

2. Why Devices Sometimes Play the Wrong Sound

Not in GM mode: The device is in a custom, performance, GS, or XG mode where Program 1 is no longer a piano.
Bank Select messages: Extra MIDI messages change the bank, so Program 1 now points to a different sound set.
Unexpected Program Changes: Your ABC file (or editor) sends a different program number than you intended.

The device is not guessing or being clever. It is obediently following whatever bank and program numbers it receives.

3. Forcing a Safe, Predictable Piano in ABC

You can explicitly tell your synth: "Use the default GM piano in the default bank." Add this inside the relevant voice in your ABC file:

V:PIANO
%%MIDI channel 1
%%MIDI control 0 0      % Bank Select MSB = 0
%%MIDI control 32 0     % Bank Select LSB = 0
%%MIDI program 1        % Acoustic Grand Piano (GM)

For a bass voice using the standard GM electric bass:

V:BASS
%%MIDI channel 2
%%MIDI control 0 0
%%MIDI control 32 0
%%MIDI program 34       % Electric Bass (finger)

Tip: Put these %%MIDI lines in your template so every song starts from a known, safe state. This keeps your synth from wandering into strange banks or user patches.

4. Keeping Drums Consistent

General MIDI reserves channel 10 for drums. In ABC:

V:DRUMS clef=perc
%%MIDI channel 10

Then use the standard drum notes (e.g., 36 = kick, 38 = snare, 42 = closed hat). Your synth will use its default GM drum kit, which is usually stable and predictable.

5. The “Renaissance Palace” Setup

ABC: Write drums and bass as text.
abc2midi: Convert to MIDI with clean, explicit program and bank settings.
Hardware synth in GM mode: Provides consistent, musical sounds.
Recorder or DAW: Capture the audio to WAV/MP3.

Once your synth is in GM mode and your ABC files explicitly set bank and program numbers, the "magic box" stops being a trickster. It becomes a reliable, obedient backing band, leaving you free to be a musician again.