unityでのロングノーツの実装

実現したいこと

unityの譜面エディタであるnoteeditorを利用してロングノーツを生成

該当のソースコード

using System;
using System.Collections.Generic;
using UnityEngine;

[Serializable]
public class Data
{
public string name;
public int maxBlock;
public int BPM;
public int offset;
public Note[] notes;

}
[Serializable]
public class Note
{
public int type;
public int num;
public int block;
public int LPB;
}

public class NotesManager : MonoBehaviour
{
public int noteNum;
//自作選曲変数
private string songName;

public List<int> LaneNum = new List<int>();
public List<int> NoteType = new List<int>();
public List<float> NotesTime = new List<float>();
public List<GameObject> NotesObj = new List<GameObject>();
//自作ロングノーツオブジェクト
public List<GameObject> LongNotesObj = new List<GameObject>();

private float NotesSpeed;
[SerializeField] GameObject noteObj;

//自作ロングノーツ
[SerializeField] GameObject longnoteObj;



void OnEnable()
{
    NotesSpeed = GManager.instance.noteSpeed;
    noteNum = 0;
    //自作選曲変数
    string songName = SelectMusic.songName;

    Load(songName);
}

private void Load(string SongName)
{
    string inputString = Resources.Load<TextAsset>(SongName).ToString();
    Data inputJson = JsonUtility.FromJson<Data>(inputString);

    noteNum = inputJson.notes.Length;
    GManager.instance.maxScore = noteNum * 5;//new!!

    for (int i = 0; i < inputJson.notes.Length; i++)
    {
        float kankaku = 60 / (inputJson.BPM * (float)inputJson.notes[i].LPB);
        float beatSec = kankaku * (float)inputJson.notes[i].LPB;
        float time = (beatSec * inputJson.notes[i].num / (float)inputJson.notes[i].LPB) + inputJson.offset * 0.01f;
        NotesTime.Add(time);
        LaneNum.Add(inputJson.notes[i].block);
        NoteType.Add(inputJson.notes[i].type);

        float z = NotesTime[i] * NotesSpeed;
        NotesObj.Add(Instantiate(noteObj, new Vector3(inputJson.notes[i].block - 1.5f, 0.55f, z), Quaternion.identity));
    }

    //自作ロングノーツリスト(ここにロングノーツを生成するコードを書きたい...)
    for (int j = 0; j < inputJson.notes.Length; j++)
    {
        float kankaku = 60 / (inputJson.BPM * (float)inputJson.notes[j].LPB);
        float beatSec = kankaku * (float)inputJson.notes[j].LPB;
        float time = (beatSec * inputJson.notes[j].num / (float)inputJson.notes[j].LPB) + inputJson.offset * 0.01f;
        NotesTime.Add(time);
        LaneNum.Add(inputJson.notes[j].block);
        NoteType.Add(inputJson.notes[j].type);

        float z = NotesTime[j] * NotesSpeed;
        LongNotesObj.Add(Instantiate(longnoteObj, new Vector3(inputJson.notes[j].block - 1.5f, 0.55f, z), Quaternion.identity));
    }
}