======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '159'
                                          'artist'  'Weezer'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Buddy Holly'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', '90s', 'alternative', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  ('electronic-generic or '
 'radio-unsorted;ifs-songwriter-indie-unsorted;ifs-songwriter-indie-rock')
                                             'bpm'  '121.628'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '121.628'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted',
 'ifs-songwriter-indie-unsorted',
 'ifs-songwriter-indie-rock']
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Buddy Holly'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Weezer'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['alternative rock', '90s', 'alternative', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.73 dB'
'TXXX:replaygain_track_peak'                        '0.426720'
'TXXX:tracknum'                                     '163'

========================== row from database ==========================
                                              'id'  1312857
                                            'path'  /data/Music/Bulk/00poprockelectronic/90s/163 - Weezer - Buddy Holly (1995).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  159
                                           'genre'  electronic-generic or radio-unsorted;ifs-songwriter-indie-unsorted;ifs-songwriter-indie-rock
                                        'filesize'  2552481
                                           'mtime'  1642256344
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 90s 163 (1995) electronic generic or radio unsorted;ifs songwriter indie unsorted;ifs songwriter indie rock
                                      'tag_artist'  Weezer
                                     'tag_release'  None
                                       'tag_title'  Buddy Holly
                                             'bpm'  121.628
                                    'search_title'  'buddy':1 'holly':2
                                   'search_artist'  'weezer':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '163':3 '1995':4,5 '90s':2 'electronic':6 'generic':7 'ifs':11,13 'indie':15 'or':8 'radio':9 'rock':16 'songwriter':14 'unsorted':10,12
                                    'search_combo'  '00poprockelectronic':4 '163':6 '1995':7,8 '90s':5 'buddy':1A 'electronic':9 'generic':10 'holly':2A 'ifs':14,16 'indie':18 'or':11 'radio':12 'rock':19 'songwriter':17 'unsorted':13,15 'weezer':3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['alternative rock', '90s', 'alternative', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642256344.371556  (2022-01-15 15:19:04)
                             'size'  2552481