======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '180'
                                          'artist'  'Opuswerk'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'The Wolve (Opuswerk from the trench remix)'
                                           '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-2', 'q-busy-3', 'q-grit-2', "
 "'q-play-3', 'q-chart-1', 'q-drums-4', 'q-other-1', 'q-piano-1', "
 "'q-vocals-1']")
                                      'lastfmtags'  "['minimal techno', 'techno', 'neotrance', 'minimal', 'ambient']"
                                     'discogstags'  "['techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '120.9'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '120.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'The Wolve (Opuswerk from the trench remix)'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Opuswerk'
'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'                                  ['techno', 'electronic']
'TXXX:lastfmtags'                                   ['minimal techno', 'techno', 'neotrance', 'minimal', 'ambient']
'TXXX:other'                                        '27561208'
'TXXX:q-bass'                                       '2'
'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'                        '-4.94 dB'
'TXXX:replaygain_track_peak'                        '0.830645'

========================== row from database ==========================
                                              'id'  857924
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/soundcloud/opuswerk/[IRM019] Ryan Davis - The Wolve (Opuswerk from the trench remix)-27561208.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  180
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  2894783
                                           'mtime'  1621084995
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm soundcloud opuswerk [IRM019] Ryan Davis 27561208 electronic techno minimal or deephouse
                                      'tag_artist'  Opuswerk
                                     'tag_release'  None
                                       'tag_title'  The Wolve (Opuswerk from the trench remix)
                                             'bpm'  120.9
                                    'search_title'  'from':5 'opuswerk':3,4 'remix':7,8 'the':1 'trench':6 'wolve':2
                                   'search_artist'  'opuswerk':1
                                  'search_release'  
                                     'search_rest'  '27561208':7 'davis':6 'deephouse':12 'electronic':8 'irm019':3,4 'minimal':10 'opuswerk':2 'or':11 'ryan':5 'soundcloud':1 'techno':9
                                    'search_combo'  '27561208':16 'davis':15 'deephouse':21 'electronic':17 'from':5A 'irm019':12,13 'minimal':19 'opuswerk':3A,4A,9B,11 'or':20 'remix':7A,8A 'ryan':14 'soundcloud':10 'techno':18 'the':1A 'trench':6A 'wolve':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           '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-2', 'q-grit-2']
                                      'lastfmtags'  ['minimal techno', 'techno', 'neotrance', 'minimal', 'ambient']
                                        'tag_date'  2010
                                     'discogstags'  ['techno', 'electronic']

============================== file details ==============================
                                           'mtime'  1621084995.378996  (2021-05-15 15:23:15)
                             'size'  2894783