======================== unified (from filesystem) ========================
                                         'bitrate'  '147.311'
                                        'duration'  '219'
                                          'artist'  'The Declining Winter'
                                     'text_people'  ''
                                         'release'  'Haunt The Upper Hallways'
                                           'title'  'Goodbye Lights Ls28'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'Q-PLAY-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-vocals-3', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['indie', 'electronic', 'post rock', 'british', 'experimental']"
                                     'discogstags'  "['electronic', 'rock', 'post rock', 'downtempo']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '10'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '90.010'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Haunt The Upper Hallways'
'TBPM' (BPM (beats per minute))                     '90.010'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'Goodbye Lights Ls28'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Declining Winter'
'TRCK' (Track number/Position in set)               '8/10'
'TXXX:Encoding Params'                              'vers'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'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:UFIDhttp://www.cddb.com/id3/taginfo1.html'    '3CD3N96Q184831610V48D852A9F4F8786BF2FC472EC7C68CC956P6'
'TXXX:discogstags'                                  ['electronic', 'rock', 'post rock', 'downtempo']
'TXXX:iTunes_CDDB_IDs'                              '10+93A5206FBE9B6ADBB9750B1E519D9410+13149683'
'TXXX:lastfmtags'                                   ['indie', 'electronic', 'post rock', 'british', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.486979'
'TXXX:tempo'                                        '00000 BPM'

========================== row from database ==========================
                                              'id'  1374004
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/the declining winter/haunt the upper hallways/08 Goodbye Lights Ls28.mp3
                                         'working'  None
                                         'bitrate'  147
                                    'duration_sec'  219
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  4049946
                                           'mtime'  1637330233
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock the declining winter haunt the upper hallways 08 ifs songwriter indie rock
                                      'tag_artist'  The Declining Winter
                                     'tag_release'  Haunt The Upper Hallways
                                       'tag_title'  Goodbye Lights Ls28
                                             'bpm'  90.01
                                    'search_title'  'goodbye':1 'lights':2 'ls28':3
                                   'search_artist'  'declining':2 'the':1 'winter':3
                                  'search_release'  'hallways':4 'haunt':1 'the':2 'upper':3
                                     'search_rest'  '00poprockelectronic':1 'declining':5 'hallways':9 'haunt':7 'ifs':10 'indie':12 'indierock':3 'poprock':2 'rock':13 'songwriter':11 'the':4 'upper':8 'winter':6
                                    'search_combo'  '00poprockelectronic':11 'declining':5B,15 'goodbye':1A 'hallways':10C,19 'haunt':7C,17 'ifs':20 'indie':22 'indierock':13 'lights':2A 'ls28':3A 'poprock':12 'rock':23 'songwriter':21 'the':4B,8C,14 'upper':9C,18 'winter':6B,16
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'electronic', 'post rock', 'british', 'experimental']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic', 'rock', 'post rock', 'downtempo']

============================== file details ==============================
                                           'mtime'  1637330233.090589  (2021-11-19 14:57:13)
                             'size'  4049946