diff --git a/packages/chord-mark/src/parser/matchers/isChordLine.js b/packages/chord-mark/src/parser/matchers/isChordLine.js
index b98ea3b6..40049131 100644
--- a/packages/chord-mark/src/parser/matchers/isChordLine.js
+++ b/packages/chord-mark/src/parser/matchers/isChordLine.js
@@ -3,7 +3,7 @@ import clearSpaces from '../helper/clearSpaces';
 
 import syntax from '../syntax';
 import isChord from './isChord';
-import isTimeSignatureString from './isTimeSignatureString';
+import isTimeSignature from './isTimeSignature';
 
 const chordBeatCountSymbols = new RegExp(
 	_escapeRegExp(syntax.chordBeatCount) + '*$',
@@ -30,8 +30,7 @@ export default function isChordLine(line = '') {
 				isChord(clean) ||
 				(potentialChordToken.match(barRepeatSymbols) && index > 0) ||
 				clean === syntax.noChord ||
-				(isTimeSignatureString(potentialChordToken) &&
-					allTokens.length > 1)
+				(isTimeSignature(potentialChordToken) && allTokens.length > 1)
 			);
 		});
 }
diff --git a/packages/chord-mark/src/parser/matchers/isTimeSignatureString.js b/packages/chord-mark/src/parser/matchers/isTimeSignature.js
similarity index 77%
rename from packages/chord-mark/src/parser/matchers/isTimeSignatureString.js
rename to packages/chord-mark/src/parser/matchers/isTimeSignature.js
index 06f5ae76..112e9aaa 100644
--- a/packages/chord-mark/src/parser/matchers/isTimeSignatureString.js
+++ b/packages/chord-mark/src/parser/matchers/isTimeSignature.js
@@ -1,7 +1,9 @@
 const allowedTimeSignatures = [
+	'1/2',
 	'2/2',
 	'3/2',
 	'4/2',
+	'1/4',
 	'2/4',
 	'3/4',
 	'4/4',
@@ -19,6 +21,6 @@ const allowedTimeSignatures = [
 	'12/8',
 ];
 
-export default function isTimeSignatureString(string) {
+export default function isTimeSignature(string) {
 	return allowedTimeSignatures.includes(string);
 }
diff --git a/packages/chord-mark/src/parser/parseChordLine.js b/packages/chord-mark/src/parser/parseChordLine.js
index 82e73e40..0a3845d6 100644
--- a/packages/chord-mark/src/parser/parseChordLine.js
+++ b/packages/chord-mark/src/parser/parseChordLine.js
@@ -6,7 +6,7 @@ import _cloneDeep from 'lodash/cloneDeep';
 import syntax, { defaultTimeSignature } from './syntax';
 import clearSpaces from './helper/clearSpaces';
 
-import isTimeSignatureString from './matchers/isTimeSignatureString';
+import isTimeSignature from './matchers/isTimeSignature';
 import parseChord from './parseChord';
 import parseTimeSignature from './parseTimeSignature';
 
@@ -90,7 +90,7 @@ export default function parseChordLine(
 	allTokens.forEach((token, tokenIndex) => {
 		if (token.match(barRepeatSymbols)) {
 			repeatPreviousBars(token);
-		} else if (isTimeSignatureString(token)) {
+		} else if (isTimeSignature(token)) {
 			changeTimeSignature(token);
 		} else {
 			parseChordToken(token);
diff --git a/packages/chord-mark/src/parser/parseTimeSignature.js b/packages/chord-mark/src/parser/parseTimeSignature.js
index 376289d8..780aa8c3 100644
--- a/packages/chord-mark/src/parser/parseTimeSignature.js
+++ b/packages/chord-mark/src/parser/parseTimeSignature.js
@@ -1,4 +1,4 @@
-import isTimeSignatureString from './matchers/isTimeSignatureString';
+import isTimeSignature from './matchers/isTimeSignature';
 
 /**
  * @typedef {Object} TimeSignature
@@ -14,7 +14,7 @@ import isTimeSignatureString from './matchers/isTimeSignatureString';
  * @returns {TimeSignature}
  */
 export default function parseTimeSignature(string) {
-	if (!isTimeSignatureString(string)) {
+	if (!isTimeSignature(string)) {
 		throw new TypeError(
 			'Expected time signature string, received: ' + string
 		);
diff --git a/packages/chord-mark/src/parser/songLinesFactory.js b/packages/chord-mark/src/parser/songLinesFactory.js
index e61d3531..0195111e 100644
--- a/packages/chord-mark/src/parser/songLinesFactory.js
+++ b/packages/chord-mark/src/parser/songLinesFactory.js
@@ -6,7 +6,7 @@ import isChordLine from './matchers/isChordLine';
 import isChordLineRepeater from './matchers/isChordLineRepeater';
 import isEmptyLine from './matchers/isEmptyLine';
 import isSectionLabel from './matchers/isSectionLabel';
-import isTimeSignature from './matchers/isTimeSignatureString';
+import isTimeSignature from './matchers/isTimeSignature';
 
 import parseChordLine from './parseChordLine';
 import parseKeyDeclaration from './parseKeyDeclaration';
diff --git a/packages/chord-mark/tests/unit/parser/matchers/isTimeSignatureString.spec.js b/packages/chord-mark/tests/unit/parser/matchers/isTimeSignatureString.spec.js
index af315fae..737e35a0 100644
--- a/packages/chord-mark/tests/unit/parser/matchers/isTimeSignatureString.spec.js
+++ b/packages/chord-mark/tests/unit/parser/matchers/isTimeSignatureString.spec.js
@@ -1,16 +1,18 @@
-import isTimeSignatureString from '../../../../src/parser/matchers/isTimeSignatureString';
+import isTimeSignature from '../../../../src/parser/matchers/isTimeSignature';
 
-describe('isTimeSignatureString', () => {
+describe('isTimeSignatureS', () => {
 	test('Module', () => {
-		expect(isTimeSignatureString).toBeInstanceOf(Function);
+		expect(isTimeSignature).toBeInstanceOf(Function);
 	});
 });
 
 describe.each([
+	['1/2', true],
 	['2/2', true],
 	['3/2', true],
 	['4/2', true],
 
+	['1/4', true],
 	['2/4', true],
 	['3/4', true],
 	['4/4', true],
@@ -35,6 +37,6 @@ describe.each([
 	['13/8', false],
 ])('Time signature string %s', (tsString, result) => {
 	test('Correctly detect time signature', () => {
-		expect(isTimeSignatureString(tsString)).toEqual(result);
+		expect(isTimeSignature(tsString)).toEqual(result);
 	});
 });