======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '222'
                                          'artist'  'Tom Waits'
                                     'text_people'  ''
                                         'release'  'Blood Money'
                                           'title'  'Starving in the Belly of a Whale'
                                           'quals'  ("['Q-JZFKS-2', 'Q-HAP-2', 'Q-LOCALNESS-2', 'Q-UNU-2', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']"
                                     'discogstags'  "['jazz', 'rock', 'blues rock', 'contemporary jazz', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '92.729'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Blood Money'
'TBPM' (BPM (beats per minute))                     '92.729'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Starving in the Belly of a Whale'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tom Waits'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['jazz', 'rock', 'blues rock', 'contemporary jazz', 'folk']
'TXXX:lastfmtags'                                   ['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.81 dB'
'TXXX:replaygain_track_peak'                        '0.448440'

========================== row from database ==========================
                                              'id'  1363909
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/00songwriter-eos/Tom Waits/2002 - Blood Money/MBZ;#Tom Waits;#Blood Money;#09;#Starving in the Belly of a Whale.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  222
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  5330833
                                           'mtime'  1639508254
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 00songwriter eos 2002 MBZ;#Tom Waits;#Blood Money;#09;#Starving ifs songwriter eos
                                      'tag_artist'  Tom Waits
                                     'tag_release'  Blood Money
                                       'tag_title'  Starving in the Belly of a Whale
                                             'bpm'  92.729
                                    'search_title'  'a':6 'belly':4 'in':2 'of':5 'starving':1 'the':3 'whale':7
                                   'search_artist'  'tom':1 'waits':2
                                  'search_release'  'blood':1 'money':2
                                     'search_rest'  '00singer':1 '00songwriter':4 '09':15,18 '2002':5 'blood':11,13 'eos':3 'ifs':20 'mbz':6,8 'money':14,17 'songwriter':2 'starving':16,19 'tom':7,9 'waits':10,12
                                    'search_combo'  '00singer':12 '00songwriter':15 '09':26,29 '2002':16 'a':6A 'belly':4A 'blood':10C,22,24 'eos':14 'ifs':31 'in':2A 'mbz':17,19 'money':11C,25,28 'of':5A 'songwriter':13 'starving':1A,27,30 'the':3A 'tom':8B,18,20 'waits':9B,21,23 'whale':7A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']
                                        'tag_date'  2002
                                     'discogstags'  ['jazz', 'rock', 'blues rock', 'contemporary jazz', 'folk']

============================== file details ==============================
                                           'mtime'  1639508254.2638211  (2021-12-14 19:57:34)
                             'size'  5330833