======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '179'
                                          'artist'  'DJ Shadow'
                                     'text_people'  ''
                                         'release'  'The Private Press (Advance)'
                                           'title'  'Track 9'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', "
 "'Q-OLDST-3', 'Q-PLAY-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-vocals-1', 'q-mixbeat-2', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['electronica', 'electronic', 'trip hop', 'hip hop', 'turntablism']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '135.365'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Private Press (Advance)'
'TBPM' (BPM (beats per minute))                     '135.365'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Track 9'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'DJ Shadow'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'trip hop', 'hip hop', 'turntablism']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.37 dB'
'TXXX:replaygain_track_peak'                        '0.541161'

========================== row from database ==========================
                                              'id'  1293692
                                            'path'  /data/Music/Bulk/00poprockelectronic/DJ Shadow/Private Press/dj shadow - private press - 09 - meets his maker.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  179
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  4313422
                                           'mtime'  1636911217
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic dj shadow private press 09 meets his maker electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  DJ Shadow
                                     'tag_release'  The Private Press (Advance)
                                       'tag_title'  Track 9
                                             'bpm'  135.365
                                    'search_title'  '9':2 'track':1
                                   'search_artist'  'dj':1 'shadow':2
                                  'search_release'  'advance':4,5 'press':3 'private':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 'acid':14 'dj':2 'downtempo':13 'electronic':9 'his':7 'hop':11 'jazz':15 'maker':8 'meets':6 'or':12 'press':5 'private':4 'shadow':3 'trip':10
                                    'search_combo'  '00poprockelectronic':10 '9':2A 'acid':23 'advance':8C,9C 'dj':3B,11 'downtempo':22 'electronic':18 'his':16 'hop':20 'jazz':24 'maker':17 'meets':15 'or':21 'press':7C,14 'private':6C,13 'shadow':4B,12 'the':5C 'track':1A 'trip':19
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'trip hop', 'hip hop', 'turntablism']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636911217.4818294  (2021-11-14 18:33:37)
                             'size'  4313422