Recommend to use Cubase/FL Studio alone or GarageBand and MuseScore3 together to validate the correctness of instrumentation and notes of each instrument. However, GarageBand's instrument naming is less trivial (see the screen shots below). You can use MuseScore3 to check the instrument names
Important Instruments: play important roles in building the perceptions of genre, rhythm, harmonics, and melody of a song, such as drums, bass, and guitars.
Note Continuation for Each Instrument: if the notes of an instrument are randomly assigned to multiple instruments from segment to segment (e.g., a sequence of guitar notes are wrongly assigned back and forth onto piano and guitar), it is considered to be poor note continuation for guitar.
Please read the following criteria and go to the next tab "Start Rating". You will first see the download link for all the audio and MIDI files. After listening to and examing the audio and MIDIs for each song, put your MOS (which allows 0.5 scale) in the corresponding entry.
Highlighted item in green (e.g., Beatles_Let_It_Be.mp3) is the original input audio, which does not need ratings.