======================== unified (from filesystem) ========================
                                         'bitrate'  '172.136'
                                        'duration'  '212'
                                          'artist'  'Hooverphonic'
                                     'text_people'  ''
                                         'release'  'Hooverphonic presents Jackie C'
                                           'title'  'Sad Song'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'electronic', 'female vocalists', 'trip hop', 'chillout']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '122.957'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Hooverphonic presents Jackie C'
'TBPM' (BPM (beats per minute))                     '122.957'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TIT2' (Title/songname/content description)         'Sad Song'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Hooverphonic'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'female vocalists', 'trip hop', 'chillout']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.94 dB'
'TXXX:replaygain_track_peak'                        '0.454828'

========================== row from database ==========================
                                              'id'  1309659
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Hooverphonic/MBZ;#Hooverphonic;#Presents Jackie Cane;#07;#Sad Song.mp3
                                         'working'  None
                                         'bitrate'  172
                                    'duration_sec'  212
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  4582928
                                           'mtime'  1636910606
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip MBZ;#Hooverphonic;#Presents Cane;#07;#Sad electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Hooverphonic
                                     'tag_release'  Hooverphonic presents Jackie C
                                       'tag_title'  Sad Song
                                             'bpm'  122.957
                                    'search_title'  'sad':1 'song':2
                                   'search_artist'  'hooverphonic':1
                                  'search_release'  'c':4 'hooverphonic':1 'jackie':3 'presents':2
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 '07':10,13 'acid':20 'cane':9,12 'downtempo':19 'electronic':15 'hooverphonic':4,7 'hop':17 'jazz':21 'mbz':3,6 'or':18 'presents':5,8 'sad':11,14 'trip':16
                                    'search_combo'  '00poprockelectronic':8 '00trip':9 '07':17,20 'acid':27 'c':7C 'cane':16,19 'downtempo':26 'electronic':22 'hooverphonic':3B,4C,11,14 'hop':24 'jackie':6C 'jazz':28 'mbz':10,13 'or':25 'presents':5C,12,15 'sad':1A,18,21 'song':2A 'trip':23
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'female vocalists', 'trip hop', 'chillout']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910606.3486173  (2021-11-14 18:23:26)
                             'size'  4582928