======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '120'
                                          'artist'  'Retina.it'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Ecate Trigemina'
                                           'quals'  ("['Q-MIXBEAT-3', 'Q-HAP-2', 'Q-UNU-1', 'q-syn-4', 'q-bass-4', 'q-busy-3', "
 "'q-grit-2', 'q-play-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-1', 'q-drums-4', "
 "'q-other-1', 'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['glitch', 'idm', 'minimal', 'lpz7a', 'electronic beats']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  'B2'
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '120.0'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '120.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Ecate Trigemina'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Retina.it'
'TRCK' (Track number/Position in set)               'B2'
'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'
'TXXX:lastfmtags'                                   ['glitch', 'idm', 'minimal', 'lpz7a', 'electronic beats']
'TXXX:other'                                        '312121422'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-4.25 dB'
'TXXX:replaygain_track_peak'                        '0.719130'

========================== row from database ==========================
                                              'id'  857229
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/soundcloud/unsorted/B2.Retina.it - Ecate Trigemina-312121422.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  120
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  1923904
                                           'mtime'  1621085027
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm soundcloud unsorted B2.Retina.it 312121422 electronic th techno minimal or deephouse
                                      'tag_artist'  Retina.it
                                     'tag_release'  None
                                       'tag_title'  Ecate Trigemina
                                             'bpm'  120.0
                                    'search_title'  'ecate':1 'trigemina':2
                                   'search_artist'  'it':2 'retina':1 'retinait':3
                                  'search_release'  
                                     'search_rest'  '312121422':7 'b2':3 'b2retinait':6 'deephouse':13 'electronic':8 'it':5 'minimal':11 'or':12 'retina':4 'soundcloud':1 'techno':10 'th':9 'unsorted':2
                                    'search_combo'  '312121422':12 'b2':8 'b2retinait':11 'deephouse':18 'ecate':1A 'electronic':13 'it':4B,10 'minimal':16 'or':17 'retina':3B,9 'retinait':5B 'soundcloud':6 'techno':15 'th':14 'trigemina':2A 'unsorted':7
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-4', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['glitch', 'idm', 'minimal', 'lpz7a', 'electronic beats']
                                        'tag_date'  2015
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621085027.1163864  (2021-05-15 15:23:47)
                             'size'  1923904