======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '338'
                                          'artist'  'Dream Theater'
                                     'text_people'  'Dream Theater/John Petrucci'
                                         'release'  'Progsoup 44'
                                           'title'  'I Walk Beside You'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['metal', 'progressive rock', 'progressive metal', 'progressive', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '100.058'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

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'PRIV:WM/WMCollectionID:Ƥõ/\x00·½@\x90qÓ ßåji'     PRIV(owner='WM/WMCollectionID', data=b'\xc6\xa4\xf5/\x00\xb7\xbd@\x90q\xd3 \xdf\xe5ji')
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'TALB' (Album/Movie/Show title)                     'Progsoup 44'
'TBPM' (BPM (beats per minute))                     '100.058'
'TCOM' (Composer)                                   'Dream Theater/John Petrucci'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'I Walk Beside You'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dream Theater'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Atlantic'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['metal', 'progressive rock', 'progressive metal', 'progressive', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.52 dB'
'TXXX:replaygain_track_peak'                        '0.350903'

========================== row from database ==========================
                                              'id'  1416061
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 44/2520 dream theater - i walk beside you.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  338
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  8146648
                                           'mtime'  1620737430
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP progsoup 2520 dream theater walk beside you rock cppex progressive;set pl progspace
                                      'tag_artist'  Dream Theater
                                     'tag_release'  Progsoup 44
                                       'tag_title'  I Walk Beside You
                                             'bpm'  100.058
                                    'search_title'  'beside':3 'i':1 'walk':2 'you':4
                                   'search_artist'  'dream':1 'theater':2
                                  'search_release'  '44':2 'progsoup':1
                                     'search_rest'  '2520':3 'beside':7 'classicprogpsy':1 'cppex':10 'dream':4 'pl':15 'progressive':11,13 'progsoup':2 'progspace':16 'rock':9 'set':12,14 'theater':5 'walk':6 'you':8
                                    'search_combo'  '2520':11 '44':8C 'beside':3A,15 'classicprogpsy':9 'cppex':18 'dream':5B,12 'i':1A 'pl':23 'progressive':19,21 'progsoup':7C,10 'progspace':24 'rock':17 'set':20,22 'theater':6B,13 'walk':2A,14 'you':4A,16
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['metal', 'progressive rock', 'progressive metal', 'progressive', 'rock']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737430.3905501  (2021-05-11 14:50:30)
                             'size'  8146648