======================== unified (from filesystem) ========================
                                         'bitrate'  '190.717'
                                        'duration'  '269'
                                          'artist'  'Tom Waits'
                                     'text_people'  ''
                                         'release'  'Asylum Years'
                                           'title'  'MARTHA'
                                           'quals'  ("['Q-JZFKS-2', 'Q-HAP-2', 'Q-LOCALNESS-2', 'Q-UNU-2', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'Q-PLAY-2', 'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-3', "
 "'Q-PIANO-4', 'q-chart-4', 'q-drums-1', 'q-other-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']"
                                     'discogstags'  "['rock', 'blues', 'lounge']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '14'
                                            'date'  '1984'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos'
                                             'bpm'  '120.113'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Asylum Years'
'TBPM' (BPM (beats per minute))                     '120.113'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-eos'
'TDRC' (Recording time)                             '1984'
'TIT2' (Title/songname/content description)         'MARTHA'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tom Waits'
'TRCK' (Track number/Position in set)               '3/14'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'blues', 'lounge']
'TXXX:lastfmtags'                                   ['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']
'TXXX:original release date'                        ['1984', '1984']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.77 dB'
'TXXX:replaygain_track_peak'                        '0.699528'

========================== row from database ==========================
                                              'id'  1247302
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Waits, Tom - Tom Waits/Asylum Years/Tom Waits - Martha - 03.mp3
                                         'working'  None
                                         'bitrate'  190
                                    'duration_sec'  269
                                           'genre'  ifs-songwriter-eos
                                        'filesize'  6419729
                                           'mtime'  1639508265
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos Waits, Martha 03 ifs songwriter eos
                                      'tag_artist'  Tom Waits
                                     'tag_release'  Asylum Years
                                       'tag_title'  MARTHA
                                             'bpm'  120.113
                                    'search_title'  'martha':1
                                   'search_artist'  'tom':1 'waits':2
                                  'search_release'  'asylum':1 'years':2
                                     'search_rest'  '00singer':1 'eos':3 'ifs':7 'martha':6 'songwriter':2 'waits':4,5
                                    'search_combo'  '00singer':6 'asylum':4C 'eos':8 'ifs':12 'martha':1A,11 'songwriter':7 'tom':2B 'waits':3B,9,10 'years':5C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-1', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['blues', 'rock', 'alternative', 'experimental', 'singer songwriter']
                                        'tag_date'  1984
                                     'discogstags'  ['rock', 'blues', 'lounge']

============================== file details ==============================
                                           'mtime'  1639508264.5905538  (2021-12-14 19:57:44)
                             'size'  6419729