diff --git a/src/components/NowPlaying.tsx b/src/components/NowPlaying.tsx
index 3df8be5..7357ebf 100644
--- a/src/components/NowPlaying.tsx
+++ b/src/components/NowPlaying.tsx
@@ -68,6 +68,7 @@ class NowPlaying extends React.Component<{}, {audioFeatures: AudioFeaturesRespon
     }
   };
 
+  // Toggles whether the metric that the user clicked on should be displayed or not
   toggleMetric = (metric: string) => {
     let newArray = this.state.metricsToDisplay.slice();
     if (newArray.includes(metric)) {
diff --git a/src/components/RecommendedTrack.tsx b/src/components/RecommendedTrack.tsx
index 965b34f..73fa58a 100644
--- a/src/components/RecommendedTrack.tsx
+++ b/src/components/RecommendedTrack.tsx
@@ -8,6 +8,7 @@ class RecommendedTrack extends React.Component<{songCover: string,
                                                 songURI: string}, 
                                                 {paddingRight: string}>  {
 
+    // Plays the recommended song whose play icon has been clicked
     playSong = () => {
       Spicetify.Player.playUri(this.props.songURI);
     }
diff --git a/src/services/enhancifyInternalService.tsx b/src/services/enhancifyInternalService.tsx
index 12a6c7e..16b3e70 100644
--- a/src/services/enhancifyInternalService.tsx
+++ b/src/services/enhancifyInternalService.tsx
@@ -16,7 +16,6 @@ export function getSongMetrics(audioFeatures: AudioFeaturesResponse, metricsToDi
 }
 
 // Object that represents which metrics require a progress bar and which metrics require a specific label
-// TODO: Add information for other metrics that we can show the user
 const metricFeatures: MetricFeatures = {
   progressbar: new Set(["Danceability", "Energy", "Acousticness", "Instrumentalness", "Speechiness", "Valence", "Liveness"]),
   label: {
@@ -28,4 +27,5 @@ const metricFeatures: MetricFeatures = {
   }
 };
 
+// Array of all the metric types that we allow to be shown
 export const allMetrics: string[] = ["Danceability", "Energy", "Acousticness", "Loudness", "Key", "Tempo", "Instrumentalness", "Liveness", "Mode", "Speechiness", "Time_Signature", "Valence"];