How to use my own midi data as input?

[dianxin556]

Sinece the data format is pkl，and how to generate the pkl from midi？Thanks~

[slSeanWU]

Hi dianxin556,

You may consult this README (from my colleague's repo) for the conversion of MIDI files into REMI event format: https://github.com/YatingMusic/compound-word-transformer/blob/main/dataset/Dataset.md

The corpus2events.py code you need in Step 5 is here: https://github.com/YatingMusic/compound-word-transformer/tree/main/dataset/representations/uncond/remi

Please note that you don't need to run the last two scripts in Step 5. Instead, you should mark the indices (positions) of Bar events of each piece in the dataset you obtained from corpus2events.py and arrange each piece as such a tuple: (bar_positions, events) to make a dataset MuseMorphose accepts.

[dianxin556]

Hi,

Hi dianxin556,

You may consult this README (from my colleague's repo) for the conversion of MIDI files into REMI event format: https://github.com/YatingMusic/compound-word-transformer/blob/main/dataset/Dataset.md

The corpus2events.py code you need in Step 5 is here: https://github.com/YatingMusic/compound-word-transformer/tree/main/dataset/representations/uncond/remi

Please note that you don't need to run the last two scripts in Step 5. Instead, you should mark the indices (positions) of Bar events of each piece in the dataset you obtained from corpus2events.py and arrange each piece as such a tuple: (bar_positions, events) to make a dataset MuseMorphose accepts.

Thanks a lot for your patient reply, I will try it~

[isidontarou0117]

Could you provide the sample script for generating the pkl? I don't know how to arrange each piece as such a tuple to make a dataset MuseMorphose accepts.

[eri24816]

Hi,

I'm also trying to use my own audio file as input.

I converted the audio into REMI and tried to feed it into generate.py, but it turns out that the vocabulary of the converted REMI data was not consistent with the one that the pretrained model uses. When I ran generate.py, the following exception occurred (likely due to mismatched vocabulary size):

Traceback (most recent call last):
  File "generate.py", line 217, in <module>
    model.load_state_dict(torch.load(ckpt_path, map_location='cpu'))
  File "/home/user/.local/lib/python3.8/site-packages/torch/nn/modules/module.py", line 1482, in load_state_dict
    raise RuntimeError('Error(s) in loading state_dict for {}:\n\t{}'.format(
RuntimeError: Error(s) in loading state_dict for MuseMorphose:
        size mismatch for token_emb.emb_lookup.weight: copying a param with shape torch.Size([333, 512]) from checkpoint, the shape in current model is torch.Size([209, 512]).
        size mismatch for dec_out_proj.weight: copying a param with shape torch.Size([333, 512]) from checkpoint, the shape in current model is torch.Size([209, 512]).
        size mismatch for dec_out_proj.bias: copying a param with shape torch.Size([333]) from checkpoint, the shape in current model is torch.Size([209]).

[eri24816]

Thanks to @slSeanWU's help, I finally found a solution. (In the case that the original data is in mp3)

In the folder compound-word-transformer/dataset/

1. Place the .mp3 file in mp3/
2. Do transcription on the audio file with an external tool
3. Place the transcribed .midi file in midi_transcribed/
4. Run synchronizer.py, analyzer.py, midi2corpus.py, and representations/uncond/remi/corpus2events.py
5. Copy folder representations/uncond/remi/ailab17k_from-scratch_remi to the MuseMorphose repo

In the folder MuseMorphose/

1. run following script to make the dataset compatible with MuseMorphose:

   
   from utils import *
   import glob

for orig_file in glob.glob("./ailab17k_from-scratch_remi/events/*.pkl"): out_file = orig_file.replace('/events/','/') events = pickle_load(orig_file) for event in events: if event["name"] == "Note_Velocity": event["value"] = min(max(40,event["value"]),80) bar_idx = [] for idx, event in enumerate(events): if event["name"] == "Bar": bar_idx.append(idx)

result = (bar_idx,events)
pickle_dump(result,out_file)

2. Edit `attributes.py` around line 7-9 with 
```python
data_dir = 'ailab17k_from-scratch_remi'
polyph_out_dir = 'ailab17k_from-scratch_remi/attr_cls/polyph'
rhythm_out_dir = 'ailab17k_from-scratch_remi/attr_cls/rhythm'

3. Run attributes.py
4. Open the config file. Make data_dir point to the custom dataset

   data_dir:         ./ailab17k_from-scratch_remi

5. Now you can run generate.py on the custom dataset!

[dedededefo]

Thanks to @slSeanWU's help, I finally found a solution. (In the case that the original data is in mp3)

In the folder compound-word-transformer/dataset/

1. Place the .mp3 file in mp3/
2. Do transcription on the audio file with an external tool
3. Place the transcribed .midi file in midi_transcribed/
4. Run synchronizer.py, analyzer.py, midi2corpus.py, and representations/uncond/remi/corpus2events.py
5. Copy folder representations/uncond/remi/ailab17k_from-scratch_remi to the MuseMorphose repo

In the folder MuseMorphose/

1. run following script to make the dataset compatible with MuseMorphose:

from utils import *
import glob

for orig_file in glob.glob("./ailab17k_from-scratch_remi/events/*.pkl"):
    out_file = orig_file.replace('/events/','/')
    events = pickle_load(orig_file)
    for event in events:
        if event["name"] == "Note_Velocity":
            event["value"] = min(max(40,event["value"]),80)
    bar_idx = []
    for idx, event in enumerate(events):
        if event["name"] == "Bar":
            bar_idx.append(idx)

    result = (bar_idx,events)
    pickle_dump(result,out_file)

2. Edit attributes.py around line 7-9 with

data_dir = 'ailab17k_from-scratch_remi'
polyph_out_dir = 'ailab17k_from-scratch_remi/attr_cls/polyph'
rhythm_out_dir = 'ailab17k_from-scratch_remi/attr_cls/rhythm'

3. Run attributes.py
4. Open the config file. Make data_dir point to the custom dataset

data_dir:         ./ailab17k_from-scratch_remi

5. Now you can run generate.py on the custom dataset!

Hello, do you know how to train the model with your own data? Remi in folder pickles vocab.pkl、train pieces.pkl、test pieces.pkl、val How to get pieces.pkl

[dedededefo]

您好 dianxin556，

您可以参考此自述文件（来自我同事的回购）以将 MIDI 文件转换为 REMI 事件格式： https ://github.com/YatingMusic/compound-word-transformer/blob/main/dataset/Dataset.md

您在第 5 步中需要的代码corpus2events.py在这里： https: //github.com/YatingMusic/compound-word-transformer/tree/main/dataset/representations/uncond/remi

请注意，您不需要运行步骤 5 中的最后两个脚本。相反，您应该在您从中获取的数据集中 标记每个片段的事件索引（位置） ，并将每个片段安排为这样的元组：MuseMorphose 接受的数据集。Bar``corpus2events.py``(bar_positions, events)

Hello, do you know how to train the model with your own data? How to get remi vocab.pkl、train pieces.pkl、test_ pieces.pkl、val_pieces.pkl in folder pickles? Thanks!

[dedededefo]

你好，

您好 dianxin556， 您可以参考此自述文件（来自我同事的回购）以将 MIDI 文件转换为 REMI 事件格式：https ://github.com/YatingMusic/compound-word-transformer/blob/main/dataset/Dataset.md 您在第 5 步中需要的代码corpus2events.py在这里： https: //github.com/YatingMusic/compound-word-transformer/tree/main/dataset/representations/uncond/remi 请注意，您不需要运行步骤 5 中的最后两个脚本。相反，您应该在Bar您从中获取的数据集中标记每个片段的事件索引（位置），并将每个片段安排为corpus2events.py这样的元组：(bar_positions, events)MuseMorphose 接受的数据集。

非常感谢您的耐心回复，我试试看~

Hi！What is Remi vocab.pkl、train pieces.pkl、test pieces.pkl、val pieces.pkl in folder pickles? How to get them？ Thanks

[FREQ-EE]

Am I correct in assuming we can train MuseMorphose using midi information from only a single track, and that multi-track midi files converted using midi2corpus.py and corpus2events.py will be unsuccessful in retaining their polyphonic/multi-track structure?

I noticed this line in corpus2events.py: t_notes = data['notes'][0][timing]

[slSeanWU]

Am I correct in assuming we can train MuseMorphose using midi information from only a single track, and that multi-track midi files converted using midi2corpus.py and corpus2events.py will be unsuccessful in retaining their polyphonic/multi-track structure?

I noticed this line in corpus2events.py: t_notes = data['notes'][0][timing]

Thanks for reaching out!

Yes, you're right. If you want to train on multitrack data, you should adapt midi2corpus.py and corpus2events.py according to your use case. You can refer to this recent paper: https://arxiv.org/abs/2409.11753 for designing the event vocab for multitrack.

[FREQ-EE]

If you want to train on multitrack data, you should adapt midi2corpus.py and corpus2events.py according to your use case. You can refer to this recent paper: https://arxiv.org/abs/2409.11753 for designing the event vocab for multitrack.

I appreciate the info and the link! I'm definitely going to explore multitrack as a next step. For now, I'm having a bit of a challenge getting my midi dataset ready to train a model without even the multitrack adaptation.