======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '209'
                                          'artist'  'Jeff Mills'
                                     'text_people'  ''
                                         'release'  'Metropolis'
                                           'title'  'Landscape'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-syn-4', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', "
 "'q-vocals-2']")
                                      'lastfmtags'  "['detroit techno', 'techno', 'electronic', 'detroit', 'minimal']"
                                     'discogstags'  "['electronic', 'stage & screen', 'techno', 'minimal', 'ambient', 'soundtrack']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '129.068'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Metropolis'
'TBPM' (BPM (beats per minute))                     '129.068'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Landscape'
'TKEY' (Initial key)                                '4B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jeff Mills'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'stage & screen', 'techno', 'minimal', 'ambient', 'soundtrack']
'TXXX:lastfmtags'                                   ['detroit techno', 'techno', 'electronic', 'detroit', 'minimal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.14 dB'
'TXXX:replaygain_track_peak'                        '0.450114'

========================== row from database ==========================
                                              'id'  1282340
                                            'path'  /data/Music/Bulk/00poprockelectronic/Jeff Mills/Mills, Jeff - metropolis/Mills, Jeff - Metropolis - 06 - Landscape.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  209
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  3361102
                                           'mtime'  1621085244
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Mills, metropolis Mills, 06 electronic th techno minimal or deephouse
                                      'tag_artist'  Jeff Mills
                                     'tag_release'  Metropolis
                                       'tag_title'  Landscape
                                             'bpm'  129.068
                                    'search_title'  'landscape':1
                                   'search_artist'  'jeff':1 'mills':2
                                  'search_release'  'metropolis':1
                                     'search_rest'  '00poprockelectronic':1 'deephouse':10 'electronic':5 'metropolis':4 'mills':2,3 'minimal':8 'or':9 'techno':7 'th':6
                                    'search_combo'  '00poprockelectronic':5 'deephouse':14 'electronic':9 'jeff':2B 'landscape':1A 'metropolis':4C,8 'mills':3B,6,7 'minimal':12 'or':13 'techno':11 'th':10
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-4', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['detroit techno', 'techno', 'electronic', 'detroit', 'minimal']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic', 'stage & screen', 'techno', 'minimal', 'ambient', 'soundtrack']

============================== file details ==============================
                                           'mtime'  1621085243.726164  (2021-05-15 15:27:23)
                             'size'  3361102