======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '287'
                                          'artist'  'The Sisters of Mercy'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-UNU-1', 'Q-HAP-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'gothic rock', 'post punk', 'gothic', 'goth']"
                                     'discogstags'  "['goth rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '146.000'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:(\x12\x00\x00'                   PRIV(owner='AverageLevel', data=b'(\x12\x00\x00')
'PRIV:PeakValue:\x8ax\x00\x00'                      PRIV(owner='PeakValue', data=b'\x8ax\x00\x00')
'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TDRC' (Recording time)                             '1990'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Sisters of Mercy'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['goth rock', 'rock']
'TXXX:lastfmtags'                                   ['80s', 'gothic rock', 'post punk', 'gothic', 'goth']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-1.09 dB'
'TXXX:replaygain_track_peak'                        '0.665909'

========================== row from database ==========================
                                              'id'  1319089
                                            'path'  /data/Music/Bulk/00poprockelectronic/Sisters of Mercy/Sisters of Mercy- Cry Little Sister (1).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  287
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  5758647
                                           'mtime'  1620572094
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Cry Little (1) electronic we new wave or post punk
                                      'tag_artist'  The Sisters of Mercy
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  146.0
                                    'search_title'  None
                                   'search_artist'  'mercy':4 'of':3 'sisters':2 'the':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '1':4,5 'cry':2 'electronic':6 'little':3 'new':8 'or':10 'post':11 'punk':12 'wave':9 'we':7
                                    'search_combo'  '00poprockelectronic':5 '1':8,9 'cry':6 'electronic':10 'little':7 'mercy':4B 'new':12 'of':3B 'or':14 'post':15 'punk':16 'sisters':2B 'the':1B 'wave':13 'we':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           '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-3', 'q-piano-1', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'gothic rock', 'post punk', 'gothic', 'goth']
                                        'tag_date'  1990
                                     'discogstags'  ['goth rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620572094.1140323  (2021-05-09 16:54:54)
                             'size'  5758647