======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '718'
                                          'artist'  'Ott'
                                     'text_people'  ''
                                         'release'  'Skylon'
                                           'title'  'From Trunch To Stromness'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dub', 'electronic', 'psychedelic', 'chillout', 'ambient']"
                                     'discogstags'  "['electronic', 'downtempo']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '90.050'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Skylon'
'TBPM' (BPM (beats per minute))                     '90.050'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'From Trunch To Stromness'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Ott'
'TRCK' (Track number/Position in set)               '1'
'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:discogstags'                                  ['electronic', 'downtempo']
'TXXX:lastfmtags'                                   ['dub', 'electronic', 'psychedelic', 'chillout', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.34 dB'
'TXXX:replaygain_track_peak'                        '0.728173'

========================== row from database ==========================
                                              'id'  1340664
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/Ott/Skylon/(01) [ott] from trunch to stromness.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  718
                                           'genre'  electronic
                                        'filesize'  28737536
                                           'mtime'  1636913251
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer (01) [ott] from trunch to stromness electronic
                                      'tag_artist'  Ott
                                     'tag_release'  Skylon
                                       'tag_title'  From Trunch To Stromness
                                             'bpm'  90.05
                                    'search_title'  'from':1 'stromness':4 'to':3 'trunch':2
                                   'search_artist'  'ott':1
                                  'search_release'  'skylon':1
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 '01':3,4 'electronic':11 'from':7 'ott':5,6 'stromness':10 'to':9 'trunch':8
                                    'search_combo'  '00calmer':8 '00poprockelectronic':7 '01':9,10 'electronic':17 'from':1A,13 'ott':5B,11,12 'skylon':6C 'stromness':4A,16 'to':3A,15 'trunch':2A,14
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dub', 'electronic', 'psychedelic', 'chillout', 'ambient']
                                        'tag_date'  2008
                                     'discogstags'  ['electronic', 'downtempo']

============================== file details ==============================
                                           'mtime'  1636913251.471569  (2021-11-14 19:07:31)
                             'size'  28737536