/* Accordion Bass Chord Chart v3.0 by boneSpider Generates a mirror reflected chord chart. Highlights buttons from one selection read from a song menu. */ var h = 0; var i = 0; var j = 0; var row, col; var pitch = "ADGCFBEADG"; var s_or_f = "#bx "; var o7mM = "o7mM "; var note = ""; var songName = ""; var bassNotes = ""; changeTable(bassNotes); /*****************************************/ function checkRows(row) { if ((row >= 0) && (row <= 4)) return 0; if ((row >= 5) && (row <= 11)) return 3; if ((row >= 12) && (row <= 18)) return 1; } /*****************************************/ function checkCols(col) { if ((col >= 0) && (col <= 3)) return col; } /*****************************************/ function checkColRow(col, row) { if ((col == 5) && ((row == 0) || (row == 1))) return 5; if ((col == 4) && ((row >= 5) && (row <= 11))) return 4; } /*****************************************/ function checkButton(col, row) { if ((col == 4) && (((row == 6) || (row == 10)) || (row == 14))) return 6; } /*****************************************/ function checkBassRows(row) { if ((row >= 2) && (row <= 8)) return 2; if ((row >= 9) && (row <= 15)) return 9; if ((row >= 16) && (row <= 18)) return 16; } /*****************************************/ function changeTable(bassNotes) { h = i = j = 0; var innerHTML = "
"; innerHTML += "
"; innerHTML += ""; for (row = 0; row < 20; row++) { i = checkRows(row); innerHTML += ""; for (col = 0; col < 6; col++) { j = checkCols(col); if (j != col) j = 4; if (col < 5) { if (row == 19) note = pitch[h] + s_or_f[1] + s_or_f[1] + o7mM[j]; else { if (checkButton(col, row) == 6) { if (s_or_f[i] == ' ') note = "( " + pitch[h] + " )"; else note = '(' + pitch[h] + s_or_f[i] + ')'; } else if (checkColRow(col, row) == 4) note = pitch[h] + s_or_f[i]; else if (s_or_f[i] != ' ') note = pitch[h] + s_or_f[i] + o7mM[j]; else note = pitch[h] + o7mM[j]; } } else { if (checkColRow(col, row) == 5) note = pitch[h+3] + s_or_f[2]; switch (checkBassRows(row)) { case 2: note = pitch[h+3] + s_or_f[0]; break; case 9: note = pitch[h+3] + s_or_f[3]; break; case 16: note = pitch[h+3] + s_or_f[1]; break; } if (row == 19) note = pitch[h+3] + s_or_f[1]; } var thStyle = "style='border: 1px solid black;border-collapse: separate; border-radius: 20px; font-weight: normal; height: 42px; width: 42px'>"; else innerHTML += ""; } h++; if (h == 7) h = 0; innerHTML += "

"; innerHTML += note + "

"; } innerHTML += ""; document.write(innerHTML); } /*****************************************/

chordChart3.js