======================== unified (from filesystem) ========================
                                         'bitrate'  '176.007'
                                        'duration'  '232'
                                          'artist'  'Lykke Li'
                                     'text_people'  ''
                                         'release'  'Youth Novels'
                                           'title'  'Melodies & Desires'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-UNU-1', '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-4', 'q-drums-3', 'q-other-4', 'q-vocals-2', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['swedish', 'indie pop', 'female vocalists', 'pop', 'electronic']"
                                     'discogstags'  "['pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '143.721'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Youth Novels'
'TBPM' (BPM (beats per minute))                     '143.721'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Melodies & Desires'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lykke Li'
'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-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'pop'
'TXXX:lastfmtags'                                   ['swedish', 'indie pop', 'female vocalists', 'pop', 'electronic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.77 dB'
'TXXX:replaygain_track_peak'                        '0.449915'

========================== row from database ==========================
                                              'id'  200280
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Lykke Li/01-lykke_li-melodies_desires.mp3
                                         'working'  None
                                         'bitrate'  176
                                    'duration_sec'  232
                                           'genre'  ifs-songwriter
                                        'filesize'  5115936
                                           'mtime'  1623435632
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 01 lykke_li melodies_desires ifs songwriter
                                      'tag_artist'  Lykke Li
                                     'tag_release'  Youth Novels
                                       'tag_title'  Melodies & Desires
                                             'bpm'  143.721
                                    'search_title'  'desires':2 'melodies':1
                                   'search_artist'  'li':2 'lykke':1
                                  'search_release'  'novels':2 'youth':1
                                     'search_rest'  '00singer':1 'desires':7 'eos':3 'ifs':8 'li':5 'lykke':4 'melodies':6 'songwriter':2
                                    'search_combo'  '00singer':7 'desires':2A,13 'eos':9 'ifs':14 'li':4B,11 'lykke':3B,10 'melodies':1A,12 'novels':6C 'songwriter':8 'youth':5C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['swedish', 'indie pop', 'female vocalists', 'pop', 'electronic']
                                        'tag_date'  2008
                                     'discogstags'  ['pop']

============================== file details ==============================
                                           'mtime'  1623435631.5342822  (2021-06-11 20:20:31)
                             'size'  5115936