diff --git a/src/App.js b/src/App.js
index 8a0aee1..dab9ead 100644
--- a/src/App.js
+++ b/src/App.js
@@ -1,17 +1,7 @@
 import './App.css';
-import { cantusFirmus, Pitch, mySequence } from './components/PitchLogic';
+import { cantusFirmus, mySequence } from './components/Instances';
 
 function App() {
-  const handleTranspose = (cantus, amount) => {
-    let newFirmus = [];
-    for (let pitch of cantus) {
-      const thing = new Pitch(pitch.getNote() + amount);
-      newFirmus.push(thing);
-    }
-    console.log(newFirmus);
-    return newFirmus;
-  }
-
   mySequence.getSonorities();
 
   return (
diff --git a/src/components/Counterpoint.js b/src/components/Counterpoint.js
new file mode 100644
index 0000000..0b45dbf
--- /dev/null
+++ b/src/components/Counterpoint.js
@@ -0,0 +1,45 @@
+export default class Sequence {
+    // constructor receives an array of cantii; those at higher indices will be placed at higher pitch levels
+    // Sequence expects that each cantus is the same length
+    constructor(cantii) {
+        this.sequence = cantii;
+        this.sonorities = null;
+    }
+
+    getSequence() {
+        return this.sequence;
+    }
+
+    checkLength() {
+        const lens = [];
+        for (let cantus of this.sequence) {
+            lens.push(cantus.melody.length);
+        }
+        return lens.reduce((a,b) => (a === b ? true : new Error("Length is not the same")));
+    }
+
+    mapLayers() {
+        let output = [];
+        for (let cantus of this.sequence) {
+            output.push(<p>{cantus.returnLetters()}</p>);
+        }
+        return output;
+    }
+
+    getSonorities() {
+        // output is an array containing sonorities as raw, inner arrays
+        const output = [];
+        for (let i = 0; i < this.sequence[0].melody.length; i++) {
+            let thing = [];
+            for (let each of this.sequence) {
+                thing.push(each.melody[i].note);
+            }
+            output.push(thing);
+        }
+        console.log(output);
+    }
+
+    evaluate() {
+
+    }
+}
\ No newline at end of file
diff --git a/src/components/Instances.js b/src/components/Instances.js
new file mode 100644
index 0000000..f78b34c
--- /dev/null
+++ b/src/components/Instances.js
@@ -0,0 +1,11 @@
+import Cantus from "./Melody";
+import Sequence from "./Counterpoint";
+import { cantusHelper } from "../util/util";
+
+const cantusPitches = cantusHelper([3,6,5,3,8,6,10,8,6,5,3]);
+export const cantusFirmus = new Cantus(cantusPitches);
+
+const solutionPitches = cantusHelper([10,10,8,10,12,1,1,12,3,2,3])
+export const cantusSolution = new Cantus(solutionPitches);
+
+export const mySequence = new Sequence([cantusFirmus, cantusSolution]);
diff --git a/src/components/Melody.js b/src/components/Melody.js
new file mode 100644
index 0000000..2f4725d
--- /dev/null
+++ b/src/components/Melody.js
@@ -0,0 +1,30 @@
+import { letterNames } from "../util/util";
+
+export default class Cantus {
+    constructor(notes) {
+        this.melody = notes;
+        this.head = null;
+        this.tail = null;
+    }
+
+    getMelody() {
+        return this.melody;
+    }
+
+    getHead() {
+        return this.head;
+    }
+
+    getTail() {
+        return this.tail;
+    }
+
+    returnLetters() {
+        let output = [];
+        for (let pitch of this.melody) {
+            let reduced = pitch.getNote() % 12;
+            output.push(`${letterNames[reduced]} `);
+        }
+        return output;
+    }
+}
\ No newline at end of file
diff --git a/src/components/Pitch.js b/src/components/Pitch.js
new file mode 100644
index 0000000..f4bea7c
--- /dev/null
+++ b/src/components/Pitch.js
@@ -0,0 +1,29 @@
+export default class Pitch {
+    // constructor expects to receive an integer representing a pitch
+    constructor(note) {
+        this.note = note;
+        this.duration = 1;
+        this.next = null;
+    }
+
+    getNote() {
+        return this.note;
+    }
+
+    getDuration() {
+        return this.duration;
+    }
+
+    upOctave() {
+        this.note += 12;
+    }
+
+    downOctave() {
+        this.note -= 12;
+    }
+
+    transposeByAmount(amount) {
+        // a positive int will transpose up, negative int will transpose down
+        this.note += amount;
+    }
+}
\ No newline at end of file
diff --git a/src/components/PitchLogic.js b/src/components/PitchLogic.js
deleted file mode 100644
index 74e156e..0000000
--- a/src/components/PitchLogic.js
+++ /dev/null
@@ -1,164 +0,0 @@
-export const letterNames = {
-    0: 'B',
-    1: 'C',
-    2: 'C-sharp',
-    3: 'D',
-    4: 'D-sharp',
-    5: 'E',
-    6: 'F',
-    7: 'F-sharp',
-    8: 'G',
-    9: 'G-sharp',
-    10: 'A',
-    11: 'A-sharp',
-}
-
-export const harmony = {
-    0: 'perfect',
-    1: 'dissonance',
-    2: 'imperfect',
-    3: 'imperfect',
-    4: 'imperfect',
-    5: 'perfect',
-    6: 'dissonance',
-    7: 'perfect',
-    8: 'imperfect',
-    9: 'imperfect',
-    10: 'imperfect',
-    11: 'dissonance'
-}
-
-
-export class Pitch {
-    // constructor expects to receive an integer representing a pitch
-    constructor(note) {
-        this.note = note;
-        this.duration = 1;
-    }
-
-    getNote() {
-        return this.note;
-    }
-
-    getDuration() {
-        return this.duration;
-    }
-
-    upOctave() {
-        this.note += 12;
-    }
-
-    downOctave() {
-        this.note -= 12;
-    }
-
-    transposeByAmount(amount) {
-        // a positive int will transpose up, negative int will transpose down
-        this.note += amount;
-    }
-}
-
-
-
-export class Cantus {
-    constructor(notes) {
-        this.melody = notes;
-    }
-
-    getMelody() {
-        return this.melody;
-    }
-
-    returnLetters() {
-        let output = [];
-        for (let pitch of this.melody) {
-            let reduced = pitch.getNote() % 12;
-            output.push(`${letterNames[reduced]} `);
-        }
-        return output;
-    }
-}
-
-
-
-export class Sonority {
-    // constructor receives an array of Pitch class objects
-    constructor(notes) {
-        this.sonority = notes;
-        this.numVoices = null;
-        this.consonance = null;
-        this.harmonicPull = null;
-    }
-
-    getSonority() {
-        return this.sonority;
-    }
-
-    setConsonance() {
-        this.consonance = 1;
-    }
-}
-
-
-
-export class Sequence {
-    // constructor receives an array of cantii; those at higher indices will be placed at higher pitch levels
-    // Sequence expects that each cantus is the same length
-    constructor(cantii) {
-        this.sequence = cantii;
-        this.sonorities = null;
-    }
-
-    getSequence() {
-        return this.sequence;
-    }
-
-    checkLength() {
-        const lens = [];
-        for (let cantus of this.sequence) {
-            lens.push(cantus.melody.length);
-        }
-        return lens.reduce((a,b) => (a === b ? true : new Error("Length is not the same")));
-    }
-
-    mapLayers() {
-        let output = [];
-        for (let cantus of this.sequence) {
-            output.push(<p>{cantus.returnLetters()}</p>);
-        }
-        return output;
-    }
-
-    getSonorities() {
-        // output is an array containing sonorities as raw, inner arrays
-        const output = [];
-        for (let i = 0; i < this.sequence[0].melody.length; i++) {
-            let thing = [];
-            for (let each of this.sequence) {
-                thing.push(each.melody[i].note);
-            }
-            output.push(thing);
-        }
-        console.log(output);
-    }
-
-    evaluate() {
-        
-    }
-}
-
-const cantusHelper = (arr) => {
-    let mappedArray = [];
-    for (let each of arr) {
-        mappedArray.push(new Pitch(each));
-    }
-    return mappedArray;
-}
-
-const cantusPitches = cantusHelper([3,6,5,3,8,6,10,8,6,5,3]);
-export const cantusFirmus = new Cantus(cantusPitches);
-
-const solutionPitches = cantusHelper([10,10,8,10,12,1,1,12,3,2,3])
-export const cantusSolution = new Cantus(solutionPitches);
-
-export const mySequence = new Sequence([cantusFirmus, cantusSolution]);
diff --git a/src/components/Sonority.js b/src/components/Sonority.js
new file mode 100644
index 0000000..d2aa5e6
--- /dev/null
+++ b/src/components/Sonority.js
@@ -0,0 +1,17 @@
+export default class Sonority {
+    // constructor receives an array of Pitch class objects
+    constructor(notes) {
+        this.sonority = notes;
+        this.numVoices = null;
+        this.consonance = null;
+        this.harmonicPull = null;
+    }
+
+    getSonority() {
+        return this.sonority;
+    }
+
+    setConsonance() {
+        this.consonance = 1;
+    }
+}
\ No newline at end of file
diff --git a/src/util/util.js b/src/util/util.js
new file mode 100644
index 0000000..cc029a3
--- /dev/null
+++ b/src/util/util.js
@@ -0,0 +1,49 @@
+import Pitch from '../components/Pitch';
+
+export const cantusHelper = (arr) => {
+    let mappedArray = [];
+    for (let each of arr) {
+        mappedArray.push(new Pitch(each));
+    }
+    return mappedArray;
+}
+
+export const letterNames = {
+    0: 'B',
+    1: 'C',
+    2: 'C-sharp',
+    3: 'D',
+    4: 'D-sharp',
+    5: 'E',
+    6: 'F',
+    7: 'F-sharp',
+    8: 'G',
+    9: 'G-sharp',
+    10: 'A',
+    11: 'A-sharp',
+}
+
+export const harmony = {
+    0: 'perfect',
+    1: 'dissonance',
+    2: 'imperfect',
+    3: 'imperfect',
+    4: 'imperfect',
+    5: 'perfect',
+    6: 'dissonance',
+    7: 'perfect',
+    8: 'imperfect',
+    9: 'imperfect',
+    10: 'imperfect',
+    11: 'dissonance'
+}
+
+export const handleTranspose = (cantus, amount) => {
+    let newFirmus = [];
+    for (let pitch of cantus) {
+      const thing = new Pitch(pitch.getNote() + amount);
+      newFirmus.push(thing);
+    }
+    console.log(newFirmus);
+    return newFirmus;
+}
\ No newline at end of file