======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '372'
                                          'artist'  'Lamb'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-2', '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'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '143.8'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '143.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lamb'
'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'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'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'                        '-0.83 dB'
'TXXX:replaygain_track_peak'                        '0.466817'

========================== row from database ==========================
                                              'id'  1309664
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Lamb/Lamb - Live/lamb - live @ avenches 2000 - 05.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  372
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  5955287
                                           'mtime'  1636910669
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip Live lamb live @ avenches 2000 05 electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Lamb
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  143.8
                                    'search_title'  None
                                   'search_artist'  'lamb':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 '2000':6 'acid':12 'avenches':5 'downtempo':11 'electronic':7 'hop':9 'jazz':13 'lamb':4 'live':3 'or':10 'trip':8
                                    'search_combo'  '00poprockelectronic':2 '00trip':3 '2000':7 'acid':13 'avenches':6 'downtempo':12 'electronic':8 'hop':10 'jazz':14 'lamb':1B,5 'live':4 'or':11 'trip':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-piano-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'female vocalists', 'trip hop', 'chillout']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910668.7257485  (2021-11-14 18:24:28)
                             'size'  5955287