From 13715a53ef71d070e7d4626c1ac7f94eb3938d67 Mon Sep 17 00:00:00 2001
From: Storm Dragon <stormdragon2976@gmail.com>
Date: Wed, 13 Sep 2017 19:30:52 -0400
Subject: [PATCH] I finally wrote a guitar tuner in bash. This is the initial
 commit.

---
 README.md    |  5 ++++-
 bashtuner.sh | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+), 1 deletion(-)
 create mode 100755 bashtuner.sh

diff --git a/README.md b/README.md
index 43c6894..89e9449 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,5 @@
 # bashtuner
-A guitar tuner written in bash
+A guitar tuner written in bash.
+To extend, add new tunings to the array. More are coming soon. I may also add other instruments such as the mandolin
+
+Want to support my work? Check out my  [Liberapay page](https://liberapay.com/stormdragon2976), or my membership options on [Patreon](https://patreon.com/stormdragon2976).
diff --git a/bashtuner.sh b/bashtuner.sh
new file mode 100755
index 0000000..1727fa8
--- /dev/null
+++ b/bashtuner.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+# Written by Storm Dragon https://social.stormdragon.tk/storm
+# Released under the terms of the WTFPL License http://wtfpl.net
+
+declare -A tuning=(
+  # Dropped 1 step.
+  [6d]="D2 G2 C3 F3 A3 D4"
+  # Standard tuning
+  [6e]="E2 A2 D3 G3 B3 E4"
+)
+
+show_help() {
+  echo "Usage: $0 tune_id"
+  echo "Where tune_id is one of"
+  echo "${!tuning[@]}"
+exit 0
+}
+
+[ $# -ne 1  ] && show_help
+[ -z "${tuning[$1]}" ] && show_help
+# Continuously play the notes until a key is press.
+# Note key can not be enter or space.
+# This will adjust how long each note plays.
+timeout=2
+for i in ${tuning[$1]} ; do
+  unset continue
+  while [[ -z "$continue" ]]; do
+    ps $notePID &> /dev/null && kill $notePID &> /dev/null
+    play -qnV0 synth $timeout pl $i &
+    notePID="$!"
+    read -sn1 -t $timeout continue
+  done
+done