======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '244'
                                          'artist'  'Fat Jon the Ample Soul Physici'
                                     'text_people'  ''
                                         'release'  'Best of Trip Hop 2'
                                           'title'  'Wet Secrets'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', "
 "'q-busy-3', 'q-grit-2', 'q-play-3', 'Q-OLDST-3', 'q-chart-2', 'q-drums-4', "
 "'q-other-1', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['hip-hop', 'trip-hop', 'downtempo', 'chillout', 'instrumental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '90.090'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Best of Trip Hop 2'
'TBPM' (BPM (beats per minute))                     '90.090'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Wet Secrets'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Fat Jon the Ample Soul Physici'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '8'
'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'                                   ['hip-hop', 'trip-hop', 'downtempo', 'chillout', 'instrumental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.80 dB'
'TXXX:replaygain_track_peak'                        '0.626665'

========================== row from database ==========================
                                              'id'  1325060
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Best of Trip Hop Vol. 1-4/Best of Trip Hop Vol.2 Presents by Maege/13_Track.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  244
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  5859390
                                           'mtime'  1636910295
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip Vol. 1 4 Vol.2 Presents by Maege 13_Track electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Fat Jon the Ample Soul Physici
                                     'tag_release'  Best of Trip Hop 2
                                       'tag_title'  Wet Secrets
                                             'bpm'  90.09
                                    'search_title'  'secrets':2 'wet':1
                                   'search_artist'  'ample':4 'fat':1 'jon':2 'physici':6 'soul':5 'the':3
                                  'search_release'  '2':5 'best':1 'hop':4 'of':2 'trip':3
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 '1':5 '13':13 '2':8 '4':6 'acid':20 'by':11 'downtempo':19 'electronic':15 'hop':17 'jazz':21 'maege':12 'or':18 'presents':10 'track':14 'trip':16 'vol':3,4,7 'vol2':9
                                    'search_combo'  '00poprockelectronic':14 '00trip':15 '1':18 '13':26 '2':13C,21 '4':19 'acid':33 'ample':6B 'best':9C 'by':24 'downtempo':32 'electronic':28 'fat':3B 'hop':12C,30 'jazz':34 'jon':4B 'maege':25 'of':10C 'or':31 'physici':8B 'presents':23 'secrets':2A 'soul':7B 'the':5B 'track':27 'trip':11C,29 'vol':16,17,20 'vol2':22 'wet':1A
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['hip-hop', 'trip-hop', 'downtempo', 'chillout', 'instrumental']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910295.071467  (2021-11-14 18:18:15)
                             'size'  5859390