======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '147'
                                          'artist'  'Los Bravos'
                                     'text_people'  ''
                                         'release'  '100 Oldies Deel 119'
                                           'title'  "I Don't Care"
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['60s', 'oldies', 'spanish', 'pop', 'rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '47'
                                      'tracktotal'  '100'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio;rock-cppex'
                                             'bpm'  '136.6'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '100 Oldies Deel 119'
'TBPM' (BPM (beats per minute))                     '136.6'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio', 'rock-cppex']
'TDRC' (Recording time)                             '1965'
'TENC' (Encoded by)                                 'Mister X'
'TIT2' (Title/songname/content description)         "I Don't Care"
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Los Bravos'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '47/100'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['60s', 'oldies', 'spanish', 'pop', 'rock', 'classic 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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.27 dB'
'TXXX:replaygain_track_peak'                        '0.335516'

========================== row from database ==========================
                                              'id'  1504139
                                            'path'  /data/Music/Bulk/00poprockelectronic/100 oldies deel 119/48 Los Bravos - I Don_t Care.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  147
                                           'genre'  electronic-generic or radio;rock-cppex
                                        'filesize'  6328694
                                           'mtime'  1620736951
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic oldies deel 48 Don_t electronic generic or radio;rock cppex
                                      'tag_artist'  Los Bravos
                                     'tag_release'  100 Oldies Deel 119
                                       'tag_title'  I Don't Care
                                             'bpm'  136.6
                                    'search_title'  'care':5 'don':2 'dont':4 'i':1 't':3
                                   'search_artist'  'bravos':2 'los':1
                                  'search_release'  '100':1 '119':4 'deel':3 'oldies':2
                                     'search_rest'  '00poprockelectronic':1 '48':4 'cppex':14 'deel':3 'don':5 'electronic':7 'generic':8 'oldies':2 'or':9 'radio':10,12 'rock':11,13 't':6
                                    'search_combo'  '00poprockelectronic':12 '100':8C '119':11C '48':15 'bravos':7B 'care':5A 'cppex':25 'deel':10C,14 'don':2A,16 'dont':4A 'electronic':18 'generic':19 'i':1A 'los':6B 'oldies':9C,13 'or':20 'radio':21,23 'rock':22,24 't':3A,17
                                    'tag_tracknum'  47
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'oldies', 'spanish', 'pop', 'rock', 'classic rock']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736951.1857367  (2021-05-11 14:42:31)
                             'size'  6328694