======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '402'
                                          'artist'  'Counting Crows'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Pale Blue Eyes (feat. Sheryl C'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-4', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', '90s', 'alternative', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '143.112'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '143.112'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Pale Blue Eyes (feat. Sheryl C'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Counting Crows'
'TRCK' (Track number/Position in set)               '20'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alternative rock', '90s', 'alternative', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.50 dB'
'TXXX:replaygain_track_peak'                        '0.653323'

========================== row from database ==========================
                                              'id'  1355452
                                            'path'  /data/Music/Bulk/00poprockelectronic/Counting Crows/MBZ;#Counting Crows;#[non-album tracks];#20;#Pale Blue Eyes (feat. Sheryl Crow) (live).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  402
                                           'genre'  rock-unsorted
                                        'filesize'  6446070
                                           'mtime'  1620389496
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#Counting Crows;#[non album tracks];#20;#Pale Crow) (live) rock unsorted
                                      'tag_artist'  Counting Crows
                                     'tag_release'  None
                                       'tag_title'  Pale Blue Eyes (feat. Sheryl C
                                             'bpm'  143.112
                                    'search_title'  'blue':2 'c':7 'eyes':3 'feat':4,5 'pale':1 'sheryl':6
                                   'search_artist'  'counting':1 'crows':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '20':12,15 'album':10 'counting':3,5 'crow':17,18 'crows':6,8 'live':19,20 'mbz':2,4 'non':7,9 'pale':13,16 'rock':21 'tracks':11,14 'unsorted':22
                                    'search_combo'  '00poprockelectronic':10 '20':21,24 'album':19 'blue':2A 'c':7A 'counting':8B,12,14 'crow':26,27 'crows':9B,15,17 'eyes':3A 'feat':4A,5A 'live':28,29 'mbz':11,13 'non':16,18 'pale':1A,22,25 'rock':30 'sheryl':6A 'tracks':20,23 'unsorted':31
                                    'tag_tracknum'  20
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', '90s', 'alternative', 'pop', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620389495.9198573  (2021-05-07 14:11:35)
                             'size'  6446070