======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '225'
                                          'artist'  'Melanie'
                                     'text_people'  ''
                                         'release'  '100 No 1 Hits vol 2'
                                           'title'  'Lay down'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['60s', 'female vocalists', 'pop', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  ''
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '89.374'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '100 No 1 Hits vol 2'
'TBPM' (BPM (beats per minute))                     '89.374'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TDRC' (Recording time)                             '1965'
'TIT2' (Title/songname/content description)         'Lay down'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Melanie'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '19'
'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'                                   ['60s', 'female vocalists', 'pop', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.87 dB'
'TXXX:replaygain_track_peak'                        '0.305149'

========================== row from database ==========================
                                              'id'  1407668
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/100 No.1 Hits vol.2/100 No.1 Hits vol.2 cd 5/cd5 19 Melanie - Lay down.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  225
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  6335448
                                           'mtime'  1676052931
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat No.1 vol.2 No.1 vol.2 cd 5 cd5 19 electronic generic or radio dance
                                      'tag_artist'  Melanie
                                     'tag_release'  100 No 1 Hits vol 2
                                       'tag_title'  Lay down
                                             'bpm'  89.374
                                    'search_title'  'down':2 'lay':1
                                   'search_artist'  'melanie':1
                                  'search_release'  '1':3 '100':1 '2':6 'hits':4 'no':2 'vol':5
                                     'search_rest'  '00poprockelectronic':1 '1':6 '19':14 '2':9 '5':12 'cd':11 'cd5':13 'dance':3 'electronic':15 'generic':2 'no':5 'no1':7 'or':16 'radio':17 'trapbeat':4 'vol':8 'vol2':10
                                    'search_combo'  '00poprockelectronic':10 '1':6C,15 '100':4C '19':23 '2':9C,18 '5':21 'cd':20 'cd5':22 'dance':12 'down':2A 'electronic':24 'generic':11 'hits':7C 'lay':1A 'melanie':3B 'no':5C,14 'no1':16 'or':25 'radio':26 'trapbeat':13 'vol':8C,17 'vol2':19
                                    'tag_tracknum'  19
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-1', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-3']
                                      'lastfmtags'  ['60s', 'female vocalists', 'pop', 'folk', 'singer songwriter']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1676052931.416704  (2023-02-10 19:15:31)
                             'size'  6335448